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A family on Belgrave Square called us in September. They had inherited a Grade II-listed Georgian townhouse with five floors, ten principal rooms, a lower-ground-floor kitchen, and a garden at the rear. The property had not been significantly renovated since the 1960s. Original features throughout cornicing, ceiling roses, original shutters, original fireplaces on every principal floor, and the original kitchen range in the lower ground floor kitchen.
But sixty years of deferred maintenance had taken their toll. Roof failing. Electrical installation requiring full replacement. The heating system is a hybrid of 1970s oil-fired and gas, inefficient and, in some areas, unsafe. Lime plaster is failing on three principal floors, the result of gypsum plaster repairs applied to a lime substrate during the 1980s. The lower-ground-floor kitchen is structurally uncertain and spatially inefficient, the result of a 1960s flat conversion that was never properly resolved.
The family had obtained four renovation programmes from four separate companies. The programmes ranged from eighteen months to three years.
None of them explained why the time range was so wide. None of them was fixed price. None of them covered all trades.
We proposed an eighteen-week programme. One company. All trades in-house. One fixed price. One project manager. The family moved back into the property at week nineteen.
The best of the four original programmes would have taken them to week seventy-eight.
Professional whole house renovation across Belgravia SW1, Belgrave Square, Chester Square, Eaton Square, Elizabeth Street, Eccleston Street, Ebury Street, and all SW1 addresses. Roofing, structural, Gas Safe plumbing, NICEIC electrics, lime plaster, original feature restoration, kitchen renovation, bathroom renovation, flooring, and decoration all in-house. Listed building specialists. Fixed prices from £60,000. Free site visit including listing condition assessment and programme planning.
Benefits:
- House renovation Belgravia complete programme, all trades in-house
- Listed building specialists Grade I and Grade II
- Original feature assessment and restoration throughout
- Listed Building Consent management included
- Roofing team in-house, no roofer coordination gap
- Gas Safe plumbers and NICEIC electricians in-house
- Lime plaster specialists in-house
- Structural team in-house opening formation and consent
- Kitchen and bathroom renovation in the house
- One programme with no gaps between stages
- Fixed price guarantee from survey to handover
- Free site visit and programme planning
- 12-month workmanship guarantee
- From £60,000 Complete Renovation
- Listed Building Specialists
- All Trades In House
- One Fixed Price
📞 Free Quote: 020 7129 7418
Standard Call Out Charge | £95.00 +vat (additional hours @£75 p/h) |
Electrician | £115.00 +vat (additional hours @£95 p/h) |
Heating / Gas Engineer | £115.00 +vat (additional hours @£95 p/h) |
EICR (Electrical Installation Condition Report) | £240-420.00 +vat P.O.A |
PAT (Portable Appliance Test *incl 12 items) | £105.00 +vat (additional £5.00 per item ) |
GSI (Gas Safety Inspection) | £110.00 +vat |
Boiler Service | £120.00 +vat |
Combined GSI & Boiler Service | £210.00 +vat |
The Belgrave Square family’s four renovation programmes ranged from eighteen months to three years. The actual building work, roof repair, full rewire, new heating, lime plaster repair on five floors, three bathroom renovations, kitchen renovation, decoration, and flooring, was the same in every programme. The building did not become more complex or more straightforward depending on which company was being asked to renovate it. The work was the work.
The reason the programmes differed so dramatically, eighteen months versus three years for the same scope of work, was not the work itself. It was the gaps between stages that each programme model would produce.
In the four-company model, the main contractor coordinates separate roofing, electrical, plumbing, and specialist subcontractors. The gaps between stages are structural. The main contractor cannot begin the lime plaster repair until the electrical first fix is complete. The electrical first fix contractor becomes available in six weeks. The main contractor cannot begin the kitchen installation until the structural work is complete. The structural work requires Listed Building Consent, which will take eight weeks to obtain. The structural contractor cannot begin until the lime plaster team has finished. The lime plaster team finishes on a Friday, and the structural contractor’s next available start date is the following month.
These gaps are not exceptional. They are the normal output of a renovation programme managed across multiple separate companies with separate programmes, separate teams, and separate availability windows. In London renovation, they are so common that they are expected to be built into the most optimistic programme estimates as contingency and into the most pessimistic as certainty.
In a five-floor Georgian townhouse in Belgravia, the cumulative effect of these gaps across every stage transition is a programme that stretches from eighteen months at best to three years in the case where the gaps compound.
At Belgravia, rented accommodation costs of £12,000 to £20,000 per month for a property of equivalent size, the Belgrave Square family were looking at accommodation costs of £216,000 to £360,000 at eighteen months and £432,000 to £720,000 at three years.
None of the four companies had mentioned this cost. None of their programmes had explained why the time range was so wide. And none of them had offered a fixed price, because a programme managed across separate companies cannot be fixed-priced. The gaps cannot be predicted and therefore cannot be guaranteed.
The Belgrave Square Georgian townhouse renovation had twelve distinct programme stages: roof repair, Listed Building Consent application, NICEIC rewire, Gas Safe heating replacement, structural work on consent receipt, lime plaster repair on five floors, three bathroom renovations, kitchen renovation, flooring on five floors, decoration on five floors, second fix throughout, and handover.
Every one of these twelve stages had a dependency. The roof had to be weathertight before internal plastering could begin because water ingress during plastering would contaminate the new lime render and require the affected areas to be redone. The electrical first fix had to be complete before lime plaster could close the walls, because chasing lime plaster for cable routes after it has been applied damages the finished surface and requires repair. The structural work could not begin until Listed Building Consent was received, a fixed legal requirement that cannot be accelerated by any amount of commercial pressure on the main contractor.
When all twelve stages and their dependencies are managed by one company with all trades employed directly, with one project manager coordinating every stage, and with the programme built to eliminate gaps rather than accommodate them, the dependencies become a sequencing advantage rather than a coordination problem.
Stage one completes on Friday. Stage two begins on Monday. Not because the contractor has been pressured to be available. Because the same project manager who finished stage one starts stage two with the same team, on the same site, under the same programme.
This is the structural advantage of one company with all trades in-house over any multi-company programme model. Not a superior skill. Not lower prices. The elimination of the gaps between stages that in a Belgravia five-floor renovation represen
The Belgrave Square renovation programme was planned at the site visit stage before the fixed price was issued, before any work was contracted, and before the family had committed to anything. The programme plan showed every stage, every dependency, and every critical path relationship across the eighteen weeks.
Weeks one and two: roof repair. Three areas of active water ingress were confirmed at the site visit. Welsh slate replacement on the affected roof slopes. Lead valley and parapet flashing replacement. Guttering replacement on the north-facing elevation, where failure was contributing to the water ingress pattern. Our roofing team is on site from day one, no roofing subcontractor to coordinate, no waiting for availability.
Week three: Listed Building Consent application submitted. The application covers structural opening formation between the lower ground floor kitchen and breakfast room, and a chimney breast opening on the first floor drawing room, which the family wanted for an open fireplace reinstatement. The programme continues with non-consent-dependent stages during the determination period, the rewire and heating replacement proceed during the consent determination rather than waiting for consent to be granted before starting.
Weeks three and four: NICEIC full rewire. New consumer unit. New circuits throughout all five floors. All cable routing within existing wall chases, where possible, where new chases were required in lime plaster fabric, our electricians used oscillating tools rather than angle grinders to minimise the width of the chase and the damage to the surrounding plaster. First fix certificate issued at the end of week four.
Weeks four and five: Gas Safe heating replacement. New condensing gas boiler correctly sized for the property by our Gas Safe engineers using heat loss calculation rather than the rule of thumb. New pipework throughout all five floors. All existing pipework, the hybrid of 1970s oil-fired and gas, was removed rather than retained where it conflicted with the new system. All radiators were replaced on every floor. The heating system was commissioned and tested at the end of week five.
Weeks six through ten, lime plaster repair throughout all five principal floors. The 1980s gypsum repairs on three floors were carefully removed to expose the original lime substrate. Lime plaster damage in all affected areas was repaired in a three-coat hydraulic lime system: scratch coat, float coat, and finish coat, with adequate drying time between coats managed within the programme. Listed Building Consent received at week eight, structural work commenced immediately on receipt.
Weeks eight through ten: structural work. Opening formation between the lower ground floor kitchen and breakfast room. Steel lintel installation at both positions to the structural engineer’s specification. Chimney breast opening on first floor drawing room structural assessment confirmed the breast could be partially opened to create a working fireplace recess without compromising the structural integrity of the chimney above. Building Regulations inspection passed at the end of week ten.
Weeks ten through fourteen: bathroom renovation on three floors. Three bathrooms were renovated: the family’s principal bathroom on the first floor, the family bathroom on the second floor, and the en suite on the third floor. Each renovation follows our standard Belgravia bathroom process, listing condition assessment, lime plaster repair where applicable, Gas Safe plumbing, NICEIC electrics, waterproofing, tiling, and sanitaryware installation. Kitchen renovation on the lower ground floor, original kitchen range retained and restored, flagstone floor cleaned and repointed, new kitchen installed around the original features, Listed Building Consent conditions observed throughout.
Weeks fifteen and sixteen: decoration throughout all five floors. All surfaces prepared. All woodwork repaired and painted. All walls were decorated in the colours the family had selected during the renovation programme rather than at the end of it, because a programme managed by one company can integrate the decoration specification process while the building work proceeds, rather than beginning it when the building work is complete.
Weeks seventeen and eighteen: flooring on all five floors. Engineered wood in the principal rooms. Wool carpet in the bedrooms. Natural seagrass on the staircases. Second fix throughout. All appliances commissioned. All systems tested. Final snagging and handover preparation.
One fixed price for all eighteen stages. Confirmed at site visit. Honoured at the handover.
The Belgrave Square family occupied the property for the first time at the start of week nineteen. Eighteen weeks from the start of roof repair to handover.
The property they moved back into was not a renovated version of the house they had inherited. It was a restored version of what it had always been, the original features of the Cubitt-built Georgian townhouse visible throughout, the original kitchen range the centrepiece of the lower ground floor kitchen, the original cornicing and ceiling roses on the principal floors repaired and painted, the original shutters restored and operational, the original fireplaces on every floor cleaned and in working order. And a new roof. A new electrical installation with full NICEIC certification. A new heating system with a Gas Safe completion notice. Three new bathrooms with Gas Safe and NICEIC certificates. A new kitchen around the original listed features. New flooring on every floor. New decoration throughout.
The best of the four original programmes would have brought them back to a house in this condition at week seventy-eight. The accommodation cost of the difference of sixty weeks at £16,000 per month in equivalent Belgravia rented accommodation was £960,000.
The fixed price of the renovation was less than the accommodation savings.
Complete house renovation across Belgravia SW1, every stage from roof assessment through to final handover, all trades in-house, one project manager, one fixed price. Our complete house renovation Belgravia service covers roofing, structural work, Gas Safe plumbing, NICEIC electrics, lime plaster repair, original feature restoration, bathroom renovation, kitchen renovation, flooring, and decoration as a single programme with no gaps between stages and no programme gap accommodation costs for the family displaced from their property.
Our complete house renovation Belgravia service begins with a site visit that covers every element of the property, including roof condition, electrical installation, heating system, structural condition, listing conditions, original features, and programme planning. The fixed price is issued within 72 hours of the site visit and covers every stage of the renovation, including Listed Building Consent management where required.
Listed building house renovation in Belgravia, Grade I, Grade II*, and Grade II listed properties across the principal streets and squares of SW1. Every listed building house renovation in Belgravia begins with a listing condition assessment, reading the specific listing description for the building before making any programme or specification recommendation. This assessment determines what is present, what is listed, what requires Listed Building Consent, and what the renovation can proceed with on standard Building Regulations alone.
Listed building house renovation in Belgravia is the most complex residential renovation programme in our service area because the listing conditions of Belgravia’s Georgian townhouses are more extensive and more specific than those of most residential listed buildings in London, and because the original fabric of these buildings lime plaster, flagstone floors, kitchen ranges, original joinery, cornicing and ceiling roses requires specific knowledge and specific techniques that standard renovation companies do not have.
Georgian townhouse renovation in Belgravia, the complete renovation of a Cubitt-built Georgian townhouse across all floors, from the roof to the lower ground floor kitchen. Georgian townhouses in Belgravia are typically five to six floors, including the lower ground floor. A significant renovation programme that requires the full range of trades coordinated across multiple floor levels over a programme of twelve to twenty weeks, depending on the scope.
The defining characteristics of a Georgian townhouse renovation in Belgravia, lime plaster on lath throughout, original joinery and features on every floor, listed conditions covering the complete building fabric, and the programme management challenge of five or six dependent renovation stages across five or six floor levels are the characteristics that our all-trades-in-house approach is specifically designed to address.
Grade I listed house renovation in Belgravia is the highest category of listed protection, covering buildings of exceptional architectural and historic interest. Grade I listed buildings in Belgravia include some of the finest examples of Regency and early Victorian domestic architecture in the country — buildings where every element of the original fabric is specifically protected and where Listed Building Consent is required for almost any intervention that affects original features.
Grade I listed house renovation in Belgravia requires pre-application consultation with the Royal Borough of Kensington and Chelsea’s conservation team before any formal application is submitted, an agreed specification reviewed and approved in principle by the conservation team, and ongoing conservation team liaison throughout the renovation programme to confirm that the work proceeds in accordance with the consent conditions.
We manage this complete process, pre-application consultation, consent application, conservation team liaison during the programme, and consent condition management at handover, as a standard element of Grade I listed house renovation projects in Belgravia.
House refurbishment for Belgravia properties where the scope is more limited than a full renovation, updating services, refreshing decoration and finishes, addressing specific maintenance items, and improving specific rooms rather than a complete programme covering every element of the building. House refurbishment in a Belgravia listed building still requires listing condition assessment at the start, because even a limited refurbishment programme in a Belgravia Georgian townhouse may encounter original features that require consent or lime plaster that requires correct repair.
Whole house renovation in Belgravia, a complete renovation covering every room on every floor of a Belgravia Georgian townhouse or a significant listed apartment building. Whole-house renovation in Belgravia at this scale produces the most significant and most enduring result of any renovation programme, because every element of the building is addressed in one coordinated programme rather than in a series of partial renovations that accumulate cost and disruption over the years.
The Belgrave Square renovation was a whole house renovation, roof to lower ground floor, all five floors, all ten principal rooms, all three bathrooms, the kitchen, all services, all original feature restoration, all decoration and flooring. Eighteen weeks. One programme. One fixed price.
Period property renovation across Belgravia covering the full range of pre-1914 property types in the SW1 postcode, from the principal garden square Georgian townhouses to the Edwardian mansion blocks on the surrounding streets. Period property renovation in Belgravia requires specific knowledge of the construction methods, materials, and listing conditions of each building type, such as lime plaster on lath in Georgian townhouses, concrete construction in Edwardian mansion blocks, and the specific listing conditions that apply to each.
What Is Included in Our House Renovation Belgravia Service
Roof assessment, repair, and replacement by our in-house roofing team covering Welsh slate repair and replacement, lead valley and parapet flashing, flat roof assessment and replacement, guttering, chimney repair and repointing, and all associated roof fabric. In Belgravia, the roofing work of listed buildings requires a specific assessment of the listing conditions. Roof coverings, chimney stacks, and parapet details are listed elements of many Belgravia buildings and require consent before alteration.
Our roofing team assesses the listing conditions for all external elements at the site visit stage and confirms the consent position before any roof work is specified. Where consent is required for roof covering changes, replacing lead with alternative materials, for example, or altering the chimney stack profile, we manage the application. Where the existing roof covering is specified in the listing conditions, Welsh slate on a Grade II listed Belgravia townhouse, we replace like for like without requiring a consent application.
Structural assessment, engineer coordination, opening formation, party wall matters, and Building Regulations management are all handled by our in-house structural team. In Belgravia, listed buildings, every structural intervention requires both Building Regulations approval and Listed Building Consent. Our structural team carries out the work to the engineer’s specification with Building Regulations sign-off obtained before any structural work is enclosed and within the consent conditions agreed with the Royal Borough of Kensington and Chelsea’s conservation team.
Assessment of the consent requirements for every element of the renovation programme, external roof works, structural interventions, works affecting original features, and any other element that triggers the listed building consent requirement. Application preparation, submission to the Royal Borough of Kensington and Chelsea, pre-application consultation for Grade I properties, conservation team liaison during determination, and consent condition management during the programme.
Listed Building Consent management is included within the fixed price of every house renovation Belgravia project where consent is required, and is not charged as an additional service after the quotation has been accepted.
All plumbing by our Gas Safe registered engineers, new heating system specification and installation, bathroom plumbing on all floors, kitchen plumbing, and gas appliance connections. In Belgravia, listed buildings’ plumbing installation requires specific routing techniques, lime plaster walls cannot be chased with angle grinders, flagstone floors must be cut with diamond equipment, and service runs must be coordinated with the structural and plastering programme to avoid damage to original fabric during installation.
Full rewire, new consumer unit, new circuit installation, bathroom and kitchen electrical work, lighting design, and EV charger installation where required, all by our NICEIC-approved electricians. Part P notification completed. NICEIC installation certificate issued at handover. In Belgravia listed buildings, electrical installation must be routed with minimal impact on original fabric, oscillating tool chase cutting rather than angle grinding in lime plaster, surface conduit where original plaster must be preserved.
Lime plaster repair and reinstatement throughout the specific capability that defines listed building renovation, and that most renovation companies do not have in-house. Lime plaster on lath, the standard wall construction of Belgravia’s Georgian townhouses, must be repaired with lime.
Gypsum applied over lime causes the lime beneath to fail. The 1980s gypsum repairs on three floors of the Belgrave Square townhouse were the direct result of a previous contractor’s failure to understand this basic principle of period building conservation.
Our lime plaster team carries out the complete lime repair process, scratch coat, float coat, and finish coat in hydraulic lime appropriate for the substrate, on every floor of every Belgravia house renovation. No gypsum. No plasterboard over original plaster. No shortcuts that produce visible failures within five years.
Assessment, conservation, and restoration of original listed features throughout the property, including cornicing, ceiling roses, original shutters, original fireplaces, kitchen ranges, flagstone floors, wide-board timber floors, original joinery, and all other surviving original fabric. Our original feature restoration service assesses every element of the existing building fabric at the site visit stage, advising on what is worth restoring versus what is beyond restoration, and carries out the restoration work as an integrated element of the house renovation programme rather than as a preliminary contract.
Bathroom renovation on every floor, all trades in-house, listing condition assessment, lime plaster repair, Gas Safe plumbing, NICEIC electrics, waterproofing appropriate for listed building substrates, tiling, and sanitaryware in specifications appropriate for Belgravia period properties. The Belgrave Square renovation covered three bathrooms across three floors, all renovated sequentially within weeks ten to fourteen of the eighteen-week programme.
Kitchen renovation including listed building consent management, structural opening formation where required, original feature retention and restoration, Gas Safe plumbing, NICEIC electrics, lime plaster repair, and kitchen installation all in-house. The Belgrave Square kitchen retained the original Victorian kitchen range and flagstone floor, both listed features and incorporated them as the defining elements of the new kitchen design.
Complete flooring supply and fit on every floor, engineered wood or herringbone in principal rooms, wool carpet in bedrooms, natural seagrass on staircases and landings, LVT in kitchen and utility areas. All flooring is installed as the final stage of each floor’s renovation programme, not as a separate post-renovation contract, eliminating the gap between renovation completion and flooring installation that, in a multi-company programme, adds weeks to the overall timeline.
Complete decoration throughout all surfaces prepared, all woodwork repaired and painted, all walls decorated in the colours agreed with the homeowner during the renovation programme. Decoration by our in-house team is integrated into the programme, beginning on lower floors as upper floor work continues rather than beginning when the building work is complete.
House Renovation Costs Belgravia
A house refurbishment in Belgravia, updating services, refreshing decoration and finishes, improving specific rooms without full renovation of all elements: typically £35,000 to £60,000 for a standard Belgravia Georgian townhouse. Listed building consent management, lime plaster repair, and Gas Safe and NICEIC certification are all included within the fixed price.
A complete house renovation in Belgravia, roof assessment and repair, full rewire, new heating, lime plaster repair, bathroom renovation, kitchen renovation, flooring, and decoration across all floors: typically £60,000 to £120,000 for a standard three to four-floor Belgravia property. A five-floor Georgian townhouse with the full scope of the Belgrave Square renovation, including Listed Building Consent management, structural work, original feature restoration, and three bathroom renovations, typically costs between £120,000 and £250,000, depending on the specification and the extent of original feature restoration required.
Grade I listed house renovation in Belgravia a complete renovation programme for a Grade I listed property with pre-application consultation, Listed Building Consent management, structural work within consent conditions, full services replacement, lime plaster repair throughout, original feature restoration, and kitchen and bathroom renovation: typically £150,000 to £400,000 and above depending on the floor area of the property, the extent of the listed conditions, and the specification of kitchen, bathroom, and finishing throughout.
The highest cost in a Belgravia house renovation managed across separate companies is not in any quotation. It is the accommodation cost of the additional time that programme gaps add to the renovation programme.
At Belgravia, rented accommodation costs of £12,000 to £20,000 per month for a property of equivalent size, every month of the programme gap costs between £12,000 and £20,000. The Belgrave Square family’s worst programme quote three years at £16,000 per month, would have produced accommodation costs of £576,000 over the eighteen-month programme gap between our eighteen-week programme and their three-year alternative.
This cost does not appear on any quotation because no company that produces multi-subcontractor programmes can guarantee the programme length and therefore cannot include the accommodation cost in a fixed price. We can. Because we eliminate the gaps. The accommodation cost is in our fixed price as zero, because eighteen weeks is eighteen weeks and there are no gaps to extend it.
The seven factors that most significantly affect house renovation cost in Belgravia are the floor area and number of floors a five-floor Georgian townhouse costs more than a three-floor property of equivalent floor area because the programme is longer; the listing grade and consent requirements; the extent of original feature restoration required; the condition of the existing services roof, electrics, heating; the bathroom and kitchen specification; the flooring specification across all floors; and the decoration specification. Our free site visit establishes all seven variables before any fixed price is quoted.
House Renovation in Belgravia Properties
The five-floor Georgian townhouse is the defining property type of Belgravia’s principal streets and squares and the most complex residential renovation programme in our service area. Five floors of dependent renovation stages, each requiring completion before the stage above can begin, each containing original features that require listing condition assessment and, in some cases, consent before alteration, and each representing a distinct programme stage with its own trade sequence and timeline.
The Belgrave Square renovation covered all five floors in eighteen weeks, an average of 3.6 weeks per floor, including all trades and all original feature restoration. This pace is achievable only because all trades are in-house, all programme dependencies are managed by one project manager, and there are no gaps between stage transitions.
Listed Building Consent management within a house renovation programme requires specific planning because the consent determination period is a fixed constraint that cannot be accelerated, and because the programme stages that depend on consent cannot begin until consent is received. The approach that most Belgravia renovation programmes fail to take is to continue non-consent-dependent stages during the determination period, reducing the effective programme impact of the consent wait from the full determination period to the gap between consent receipt and the next consent-dependent stage.
The Belgrave Square programme submitted the Listed Building Consent application in week three, immediately after the non-consent-dependent roof repair stage. The rewiring and heating replacement continued during the determination period. Consent was received at week eight.
Structural work began immediately at week eight, with only the electrical and heating time already used, rather than the full eight weeks.
The original features of a Belgravia Georgian townhouse are more consistent and more extensively surviving than those of any other property type in our service area, because Belgravia’s development by Thomas Cubitt produced buildings of sufficient quality that their original fabric has survived significantly better than the Victorian terrace stock of Chelsea and South Kensington.
Expected original features in an unmodernised or partially modernised Belgravia Georgian townhouse include original cornicing on all principal floors, ceiling roses in principal rooms, original shutters on all windows facing the street and garden, original fireplaces on every principal floor with marble or stone surrounds and original grates, original kitchen range in the lower ground floor kitchen, original flagstone or encaustic tile floor in the lower ground floor, original lime plaster on lath throughout, and original wide-board timber floors on upper floors beneath later coverings in many properties.
All of these features are potentially listed. All of them require assessment before the renovation programme begins. And all of them, when correctly assessed, retained, and restored, produce a renovation result that no amount of new specification can replicate.
The majority of Belgravia’s listed residential stock is Grade II buildings of special interest, warranting every effort to preserve them. A smaller number of buildings, principally the finest properties on the principal garden squares and a small number of outstanding individual buildings, are Grade I listed, representing exceptional interest.
The practical difference for a house renovation programme in Belgravia is primarily the consent process. Grade II listed house renovation requires Listed Building Consent for works affecting original features, a process that typically takes six to eight weeks from application to determination. Grade I listed house renovation requires pre-application consultation before any formal application, adding four to eight weeks to the pre-start programme and ongoing conservation team liaison during the renovation. Both are manageable within a planned programme. Neither is a reason not to renovate. Both are reasons to use a renovation company that manages the consent process as standard.
Why Choose Our House Renovation Belgravia Service
Roofing. Structural. Gas Safe plumbing. NICEIC electrics. Lime plaster. Original feature restoration. Bathroom renovation. Kitchen renovation. Flooring. Decoration. All are employed directly by Chelsea Property Renovation & Maintenance Ltd. All coordinated by one project manager. All working towards one programme. No gaps between stages. No accommodation costs from programme gaps. The Belgrave Square family moved back in week nineteen. Their best alternative would have been week seventy-eight.
We carry out house renovation in Grade I and Grade II listed buildings in Belgravia every year, understanding the specific consent requirements of each listing grade, the specific features protected in each building type, and the specific techniques required to work correctly within the original listed building fabric. Listed Building Consent management is included in the fixed price. Pre-application consultation for Grade I properties is standard. RBKC conservation team liaison throughout the programme is our responsibility, not the homeowner’s.
No other element of a Belgravia Georgian townhouse renovation more clearly distinguishes a specialist from a generalist than lime plaster. Gypsum applied over lime fails. Every time. Within five to ten years. The 1980s repairs on the Belgrave Square townhouse had failed within that timescale. Our lime plaster team carries out lime repair in-house, correctly specified, correctly applied, guaranteed for twelve months on every Belgravia house renovation.
We assess every Belgravia property for original features before any strip out begins, reviewing the listing description, inspecting every surface, and confirming what is present and what requires consent before the programme starts. The features we find and retain, and restore are the features that make a Belgravia renovation different from any other.
The price on our house renovation Belgravia quotation is the price on our invoice. The programme length for our house renovation in Belgravia is the programme length we deliver. Both are fixed. Both are guaranteed. Neither is subject to variation for programme gaps that the renovation model produces as a matter of course.
All plumbing by Gas Safe registered engineers. All electrical work by NICEIC-approved electricians. Gas Safe completion notice and NICEIC installation certificate issued at handover on every house renovation Belgravia project. All certifications required for building insurance, lease compliance, and resale are provided as standard.
Every house renovation quotation in Belgravia begins with a free site visit, roof assessment, listing condition assessment, original feature assessment, services assessment, and programme planning. Written fixed price and programme schedule issued within 72 hours. Call 020 7129 7418.
Our House Renovation Process Belgravia The Eighteen-Week Model
The project manager attends your Belgravia property. Roof condition assessed. Listing conditions are assessed against the building’s specific listing description. Original features identified throughout. Structural assessment of the proposed opening formation. Services condition electrical, heating, plumbing assessed. Programme planned. No charge. No obligation. Call 020 7129 7418 to arrange.
Written fixed price issued within 72 hours of site visit covering every stage of the renovation from roof to final handover, including Listed Building Consent application and management. The programme schedule is issued alongside the fixed price, showing every stage, every dependency, and every critical path relationship. Both fixed. Both guaranteed.
Roofing team on site from day one. All roof defects addressed. Property made weathertight before any internal work begins. Welsh slate replacement. Lead work. Guttering. Chimney repointing where required. Internal plastering cannot begin until the roof is confirmed weathertight. This dependency is why roof repair is always stage one.
Application submitted for all works requiring consent. Non-consent-dependent stages continue during the determination period, rewiring and heating replacement proceed in parallel rather than waiting for consent. Consent determination: 6-8 weeks Grade II, 10-14 weeks Grade I with pre-application consultation.
Full electrical installation replacement throughout all floors. New consumer unit. All circuits. All first fix within walls using lime-compatible techniques. Part P notification lodged. First, fix the certificate issued at completion.
New boiler, new pipework, new radiators throughout. All existing pipework was removed where conflicting with the new system. Heating system commissioned and tested. Gas Safe completion notice issued.
Structural opening formation to engineer specification within Listed Building Consent conditions. Temporary propping. Steel lintel installation. Building Regulations inspection. Structural making good in lime plaster. Building Regulations certificate issued.
Lime plaster repair throughout all floors, a three-coat system in hydraulic lime. All gypsum repairs removed. All original lime surfaces were repaired correctly. Drying time managed within the programme; lime cannot be rushed. Structural reveals plastered in lime to match the surrounding surfaces after the structural stage completion.
All bathrooms were renovated sequentially. Kitchen renovation, original features retained and restored, new kitchen installed around them. All in-house. Gas Safe and NICEIC certified throughout.
Decoration throughout all floors is integrated with flooring installation in the correct sequence. Flooring is installed as the final stage of each floor. Second fix throughout. All systems tested. Snagging completed.
Complete inspection. All certificates issued by NICEIC, Gas Safe, Building Regulations, and Listed Building Consent documentation. All manufacturer warranties. 12-month guarantee issued. All documentation for insurance, lease compliance, and resale is provided. Keys returned. Call 020 7129 7418 to begin.
Areas We Cover for House Renovation
Our Belgravia coverage includes Belgrave Square, Chester Square, Eaton Square, Elizabeth Street, Eccleston Street, Ebury Street, Lyall Street, Motcomb Street, Wilton Crescent, Grosvenor Crescent, and all SW1 Belgravia addresses. Listed building specialists. Free site visit. Call 020 7129 7418.
Complete house renovation across Chelsea SW3. Victorian terrace specialists. All trades in-house. Fixed price. See our House Renovation Chelsea page. Call 020 7129 7418.
House renovation across Knightsbridge SW1X. Mansion block and period townhouse specialists. All trades in-house. Fixed price. See our House Renovation Knightsbridge page. Call 020 7129 7418.
House renovation across South Kensington SW7. Victorian and Edwardian period property specialists. All trades in-house. Fixed price. Free site visit. Call 020 7129 7418.
House renovation across Kensington W8. All house renovation services with the same fixed prices and an all-trades-in-house approach. Free site visit. Call 020 7129 7418.
Related Services
primary service page for SW3
House Renovation Knightsbridge →
Mansion block and period townhouse specialists.
Kitchen Renovation Belgravia →
Listed building kitchen renovation specialists.
Bathroom Renovation Belgravia →
Listed building bathroom renovation specialists.
Complete roofing services across Chelsea, including planned roof repair and annual surveys. Guttering is one element of our complete roofing Chelsea service.
Emergency Roof Repair Chelsea →
Emergency guttering repair available 24/7 as part of our emergency roofing Chelsea service.
Property Maintenance Chelsea →
Monthly property maintenance contracts include annual guttering inspection and cleaning, preventing guttering failures before they become costly, consequential damage.
Property Refurbishment Belgravia →
Complete property refurbishment across Belgravia, including all guttering, roofing, structural, and interior works on listed buildings.
Downpipe blockages and guttering failures frequently affect the drainage system below ground. Our drain cleaning Chelsea team resolves both above and below-ground drainage issues.
Burst pipe, no hot water, or plumbing emergency in Chelsea? Our Gas Safe engineers respond within 60 minutes, 24/7. Fixed-price emergency callout from £115.
Replacing your boiler in Chelsea? We supply and install Worcester Bosch, Vaillant, and Ideal boilers from £2,200. Gas Safe certified. Free survey and fixed-price quote.
Landlord electrical certificate required for your Chelsea rental property? NICEIC-approved electricians provide same-day EICR testing from £240. Digital certificate within 24 hours.
Need a reliable plumber in Chelsea? Gas Safe registered plumbers covering SW3, Knightsbridge, and South Kensington. All plumbing services. Same-day appointments from £95.
Complete home renovation across Chelsea, including bathroom, kitchen, and structural works by our in-house team.
Bathroom Installation Chelsea →
New bathroom installation for properties, adding a bathroom for the first time or converting an existing space.
Book Now → Gas Leak Repair Chelsea
GET YOUR FREE BOILER INSTALLATION QUOTE
Call: 020 7129 7418
- ✅ Gas Safe registered engineers
- ✅ From £2,200 (transparent fixed pricing)
- ✅ Worcester Bosch, Vaillant, Ideal
- ✅ 10-year warranty included
- ✅ Same-day installation is typical
- ✅ Complete certification & compliance
Free home survey within 7 days. Quote provided within 24 hours.
Chelsea Property Renovation & Maintenance Ltd
289 Brompton Road, Knightsbridge, London SW3 2DY
📞 Phone: 020 7129 7418
📧 Email: info@chelseapropertyrenovation.co.uk
🌐 Web: chelseapropertyrenovation.co.uk
Gas Safe Registered • £10M Insured • Family Business Since 2000
What Our Chelsea Clients Say About Our House Renovation Belgravia
Read testimonials from satisfied homeowners across Chelsea, Knightsbridge, and Belgravia who trust us with their property renovation and maintenance needs.
“Chelsea Property Renovation renovated our five-floor Grade II listed Georgian townhouse on Belgrave Square in eighteen weeks, including roof repair, full rewire, new heating, lime plaster repair throughout, three bathrooms, kitchen with original range retained, flooring on all five floors, and decoration throughout. One fixed price. One project manager. Eighteen weeks. Listed Building Consent managed. Original features restored. The result is exceptional. Four other companies quoted between eighteen months and three years.”
Sir James Cavendish - Belgravia SW1
Complete Five-Floor Georgian Townhouse Renovation - Belgrave Square
⭐⭐⭐⭐⭐ 5/5 Stars
“Complete renovation of our Grade II listed Eaton Square Georgian townhouse by Chelsea Property Renovation. All original features identified and restored cornicing, shutters, fireplaces, kitchen range, and flagstone floor. Listed Building Consent managed throughout. Lime plaster repair was correctly specified and correctly applied in-house. Gas Safe and NICEIC certified. Fixed price quoted and fixed price charged. One programme. Zero gaps between stages. The renovation we always wanted. Outstanding house renovation, Belgravia.”
Lady Victoria Pemberton - Belgravia SW1
Belgravia SW1 Grade II Listed House Renovation, Eaton Square, All Original Features Retained
⭐⭐⭐⭐⭐ 5/5 Stars
“Whole house renovation of our Chester Square Grade II listed Georgian townhouse by Chelsea Property Renovation, every floor, every trade, one company. Roof to lower ground floor kitchen. All original features retained and restored. Listed Building Consent managed. Lime plaster throughout was correctly repaired in-house. Gas Safe and NICEIC certified on every element. Fixed price honoured exactly. Eighteen working weeks from start to handover. The finest renovation company in Belgravia without question.”
Edward Forsythe - Belgravia SW1
Whole House Renovation Chester Square Georgian Townhouse Eighteen Weeks
25+ Years Central London Experience
We’ve completed home renovations in Central London since 2000. Over 150 projects across Chelsea, Belgravia, Kensington, Knightsbridge, Marylebone, Bloomsbury, Fitzrovia, and Westminster.
Fully Insured & Guaranteed
£10M public liability insurance, £10M employers' liability insurance, and professional indemnity coverage. All work is fully guaranteed. Building control certificates provided. Electrical and Gas Safe certificates where applicable. Written guarantees on all home renovation services Central London. Insurance certificates available on request.
Quality Materials & Expert Craftsmanship
We specify and source high-quality materials from established manufacturers ensuring reliability and longevity.
Conservation Area Specialists
95% planning approval rate in Central London conservation areas. We've successfully renovated listed buildings and strict conservation properties across Westminster and Kensington & Chelsea. We know what conservation officers want to see before we submit applications.
200+ Satisfied Customers
Proven track record across Central London with hundreds of completed renovations. Our reputation built on exceptional project management, quality workmanship, transparent pricing, and beautiful results that exceed expectations.
Meet Our Trusted Team
John Michaels
Renovation Consultant
Dan Wright
Plumbing and Heating Engineer
Glenn Knowles
CEO
Harry Collins
Repair Technician
Ready to transform your Central London property? Get your fast quote today. Contact Chelsea Property Renovation & Maintenance Ltd
How much does house renovation cost in Belgravia?
House renovation in Belgravia costs from £35,000 for a house refurbishment to £400,000 and above for a complete Grade I listed Georgian townhouse renovation with full original feature restoration. A complete house renovation, roof, rewire, heating, lime plaster, bathrooms, kitchen, flooring, and decoration typically costs £60,000 to £120,000 for a three to four-floor Belgravia property and £120,000 to £250,000 for a five-floor Georgian townhouse. Free site visit and fixed-price quotation within 72 hours. Call 020 7129 7418.
How long does house renovation take in Belgravia?
A complete five-floor Georgian townhouse renovation in Belgravia takes eighteen to twenty-six weeks when all trades are in-house, and the programme is managed without gaps between stages. Multi-company programmes managing the same scope typically take eighteen months to three years, because programme gaps between separate companies compound across every stage transition. The Belgrave Square renovation took eighteen weeks. The best alternative programme quoted was seventy-eight weeks. Call 020 7129 7418.
Do I need Listed Building Consent for house renovation in Belgravia?
In most cases, yes, for at least some elements of a Belgravia house renovation. Works affecting original features, structural interventions, changes to external elements, including roof coverings and extraction vents, all typically require Listed Building Consent in Belgravia’s listed buildings. We assess the consent position for every element of the renovation at the site visit stage and manage all applications. Consent management is included in the fixed price. Call 020 7129 7418.
Can you carry out a whole-house renovation in a Belgravia listed building?
Yes. We carry out whole-house renovations in Grade I and Grade II listed buildings in Belgravia regularly. Listed Building Consent management, pre-application consultation for Grade I properties, structural work within consent conditions, lime plaster repair throughout, original feature restoration, and all services replacement, all in-house, all within the programme, all within the fixed price. Call 020 7129 7418.
What is the programme gap cost in a Belgravia house renovation?
The programme gap cost is the accommodation cost of the additional time that programme gaps add when a renovation is managed across separate companies. At Belgravia, rented accommodation costs £12,000 to £20,000 per month; every additional month beyond our programme length costs the family between £12,000 and £20,000. The Belgrave Square family’s worst programme quote added sixty weeks to our programme at £16,000 per month, that is £960,000 in additional accommodation costs. We eliminate programme gaps. Our programme length is fixed. Call 020 7129 7418.
Do you carry out lime plaster repair in-house in Belgravia?
Yes. Lime plaster repair is carried out by our in-house plastering team on every Belgravia house renovation, correctly specified in hydraulic lime appropriate for the substrate and applied in the correct number of coats with adequate drying time between coats. We do not use gypsum over lime. We do not plasterboard over original plaster. Lime plaster repair by our in-house team is included in the fixed price of every Belgravia house renovation. Call 020 7129 7418.
Do you carry out all trades in-house for house renovation in Belgravia?
Yes. Roofing, structural, Gas Safe plumbing, NICEIC electrics, lime plaster, original feature restoration, bathroom renovation, kitchen renovation, flooring, and decoration all by our directly employed team. No subcontractors. One project manager. One fixed price. No programme gaps between stages. Call 020 7129 7418.
How do I choose a house renovation company in Belgravia?
The four questions that matter most for a Belgravia house renovation are: do they carry out all trades in-house or do they subcontract; do they offer a fixed price or a range; do they read the listing conditions before making recommendations; and do they explain the programme gap cost of their renovation model. A company that subcontracts, quotes a range, does not read the listing, and does not mention programme gaps is not the company for a Belgravia-listed building renovation. Call 020 7129 7418.
What original features should I expect in a Belgravia Georgian townhouse?
Cornicing on all principal floors, ceiling roses in principal rooms, original shutters on street and garden elevations, original fireplaces with marble or stone surrounds on every principal floor, original kitchen range in the lower ground floor kitchen, original flagstone or encaustic tile floor in the lower ground floor, lime plaster on lath throughout, and original wide-board timber floors on upper floors beneath later coverings in many properties. All of these are potentially listed. All require assessment before renovation. Call 020 7129 7418.
Is house renovation worth it in Belgravia?
Yes. Correctly executed house renovation in Belgravia, particularly in a Georgian townhouse where all original features are retained and restored, adds value that significantly exceeds the renovation cost. A five-floor Belgrave Square Georgian townhouse in fully renovated condition with all original features restored commands a premium of £500,000 to £2,000,000 above the unrenovated value, depending on the property size and specification. The renovation cost of £120,000 to £250,000 produces a net return that no other investment in the property market can match. Call 020 7129 7418.
What certifications do you provide at handover in Belgravia?
NICEIC electrical installation certificate. Gas Safe completion notice for all gas work. Building Regulations completion certificate where structural work was carried out. Listed Building Consent documentation confirming the renovation was completed within the consent conditions. All manufacturer warranties for appliances, sanitaryware, and materials. 12-month workmanship guarantee. All documentation required for building insurance, lease compliance, and resale is provided on handover day. Call 020 7129 7418.
Do you manage Listed Building Consent for house renovation in Belgravia?
Yes. Listed Building Consent management is included in the fixed price of every Belgravia house renovation where consent is required, assessment, application preparation, submission, RBKC conservation team liaison, and consent condition management during the programme. Pre-application consultation for Grade I properties is standard. We manage the complete consent process. The homeowner does not need to engage separately with the Royal Borough of Kensington and Chelsea’s conservation team. Call 020 7129 7418.
Central London
Your local team for fast, reliable electrical service throughout Central London.
Address:
289 Brompton Road, Knightsbridge, London, SW3 2DY
Email:
info@chelseapropertyrenovation.co.uk
Phone number:
020 7129 7418
Office Hours:
Monday-Friday 8:30 am-6 pm
Saturday -Sunday - Emergency only
Areas We Serve:
- Belgravia
- Pimlico
- Mayfair
- Marylebone
- Victoria
- Paddington
- Hammersmith & Fulham
- ower Hamlets
- Lambeth
- Plus Hackney
- Chelsea
- South Kensington
- Knightsbridge
- Notting Hill
- Earl's Court
- Camden Town
- Barbican
- Bank
- Liverpool Street
- Moorgate
- King's Cross
- Primrose Hill
- Hampstead
- Kentish Town
- Angel
- Barnsbury
- Canonbury
- Highbury
- Clerkenwell
- Southwark
We Are Accredited
All our tradesmen, plumbers, heating engineers, electricians, and builders are fully accredited by leading industry bodies, ensuring the highest standards of quality and professionalism on every job.
