Mansion Flat Refurbishment, St John's Wood
Mansion-flat refurbishment with walnut and lacquer cabinetry in St John's Wood.
Read the Mansion Flat Refurbishment, St John's Wood project account →
St John's Wood · NW8 · Flat Refurbishment
Flat
refurbishment
in St John's Wood, NW8
Updated 11 September 2026
Architects, Engineers, Surveyors & Builders Under One Roof.
One Studio. One Contract. One Team.
Independent surveying by our sister practice, Hampstead Chartered Surveyors (RICS Firm No. 923064)For flat refurbishment around Hamilton Terrace mansion blocks, Grove End Gardens, Lisson Grove mansion flats in St John's Wood, plan the rooms alongside the building they belong to. Consider layout changes, services and finishes together with the lease, shared access and any retained features.
St John's Wood leasehold specialists
In-house RIBA Chartered Architects
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£10M insurance
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Independent surveying via Hampstead Chartered Surveyors
Local Depth · NW8
Flat refurbishment in St John’s Wood: what actually drives the project
St John’s Wood is a Westminster villa suburb: detached and semi-detached stucco Italianate houses on Hamilton Terrace, Carlton Hill and Elm Tree Road sit alongside large red-brick mansion blocks, so the work is split between substantial villa refurbishments and high-spec flat projects.
The area sits within Westminster conservation areas with tight control of villa streetscapes, garden settings, roof changes and basements. For mansion-flat work, check the lease and proposed changes to establish whether freeholder consent or a Licence to Alter is required before altering services or layouts.
Budgets are driven by large floorplates, basement or leisure additions, acoustic separation in mansion flats, Westminster’s consent process, party-wall awards and the high level of finish expected in NW8 homes.
Planning a villa or mansion-flat refurbishment in St John’s Wood? Send the details for a realistic budget range and consent plan. Tell us about your project →
Local Application
Flat Refurbishment in St John's Wood: Applied to the Local Stock
St John's Wood sits in the City of Westminster, and most of it lies within the St John's Wood Conservation Area — one of the capital's grandest, defined by wide leafy roads, large detached and semi-detached stucco villas and substantial red-brick mansion blocks.
Sources: Westminster City Council — St John's Wood Conservation Area mini guide (May 2004) (2026)
The Service
What a Flat Refurbishment Involves
Refurbishing a flat means renovating inside a building you share — so the job is as much about leases, neighbours and building rules as it is about kitchens and finishes. We plan every project around the consents your lease demands and the protocols your block expects, then deliver the technical work under one fixed-price contract. A typical scope covers the elements below.
- Licence to Alter — lease review, application pack and freeholder’s surveyor queries handled on your behalf
- Acoustic build-up — separating floors and walls upgraded to meet Building Regulations Part E and any stricter freeholder schedule
- Wet-room tanking — certified waterproofing beneath every bathroom, flood-tested before tiling and covered by a 12-month defects period
- Rewire & replumb — new circuits, pipework and heating, coordinated with the building’s risers and stacks
- Layout changes — internal openings engineered, approved by building control and cleared with the freeholder where the lease allows
- Kitchens & bathrooms — designed, supplied and fitted to the specification tier you select
- Period detail — cornicing, sash windows and fireplaces retained and repaired in conversion flats
- Block protocols — lift protection, booked deliveries, restricted noisy hours and daily cleaning of communal areas
Our Method
How We Run Your Project
Six stages, with the consent requirements and their effect on the programme considered before work starts.
- Survey & lease review — we measure the flat, inspect the services and read your lease to identify exactly which consents apply.
- Design & consents — our architects develop the layout while the Licence to Alter application runs in parallel, not afterwards.
- Fixed-price contract — an itemised specification agreed in full, with the acoustic and tanking details written in.
- Strip-out & first fix — soft strip, structural openings, cabling, pipework and the acoustic carcass, all removed and delivered through agreed routes.
- Second fix & finishes — kitchen, bathrooms, joinery, flooring and decoration.
- Testing & handover — snagging, certification and reinstatement of any communal areas before the keys come back to you.
Read the full flat refurbishment guide for flat typologies, specification tiers and the Licence to Alter process in detail.
Read the lease and identify any required freeholder consent or Licence to Alter for the proposed work before it is programmed. Planning permission, listed-building consent and Building Regulations are separate checks. Flats do not share the householder permitted-development rights available to houses, but that does not mean every external repair needs an application: like-for-like window replacement may not need planning permission, subject to the property and local requirements. Check the actual alteration, including any effect on a listed building's special interest. Our planning guide library explains the separate approval routes.
Credentials
Why Hampstead Renovations
Flat refurbishment rewards a team that already knows what freeholders and managing agents will ask for. Design is led by our in-house RIBA Chartered Architects, lease and party-structure matters are supported by RICS surveying through our sister company, Hampstead Chartered Surveyors, and the build is carried out by our own long-standing teams. Every contract is fixed-price on JCT terms, backed by £10M public liability insurance — the level major London freeholders require — plus a 12-month defects period. Enquire before 2pm on a weekday and we will call you back the same day.
Cost guide
What does a flat refurbishment cost in St John's Wood?
A flat refurbishment in St John's Wood runs £900–£1,700/sqm excluding VAT, and a full two-bedroom refurbishment typically lands between £60,000 and £110,000. Most programmes take 16–32 weeks on site. A written scope and site assessment are needed before any project price can be fixed.
| Scope of work | Guide rate | Typical total |
|---|---|---|
| Full flat refurbishment (2-bed) | £900–£1,700/sqm | £60,000–£110,000 |
| Typical programme | 16–32 weeks on site | |
Guide rates exclude VAT and are set by depth of work, not by property type. Compare scopes in our London refurbishment cost-per-square-metre guide.
FAQs
Flat Refurbishment in St John's Wood: Questions
How much does a flat refurbishment cost in St John's Wood?
Westminster works to a headline of £60,000–£110,000 excluding VAT, which tracks the London-wide band for a full refurbishment of a two-bedroom flat. NW8 projects are typically substantial and specified to a high standard, so we price each flat from a survey rather than from the band.
Do I need my freeholder's permission to refurbish a St John's Wood flat?
Expect the lease to lead the project. Leasehold tenure covers nearly every mansion-block flat in NW8 and a good share of the grandest villas, which seats the freeholder, the managing agent and the lease terms at the table with Westminster from day one — and no change to services or layouts should begin before freeholder consent and a Licence to Alter are secured.
What are the St John's Wood mansion blocks like to refurbish?
Demanding in the right ways. The imposing red-brick blocks that stand alongside the villas of Hamilton Terrace, Carlton Hill, Grove End Road and Elm Tree Road hold lateral flats, and refurbishing one is a Licence to Alter project in which acoustic separation, services routing and managing-agent coordination sit at the core of the scope rather than at its edges.
Will Westminster's conservation rules touch an interior flat refurbishment in NW8?
Mostly at the margins. Most of NW8 sits inside the St John's Wood Conservation Area — among the grandest in the capital, its character set by wide tree-lined roads, big stucco villas and substantial red-brick mansion blocks — so purely internal works generally proceed without planning, while anything that reaches a window, flue or elevation changes the picture. We establish the boundary of the works before design begins.
What building types does flat refurbishment in St John's Wood cover?
Three, broadly: stucco Italianate villas, Regency terraces and the large mansion blocks, in a district planned from the early 1800s as one of London's first villa suburbs. Flats occur across all three, and the host building sets everything from the acoustic strategy to the consent route.
Local Proof
Relevant Completed Flat Refurbishment Projects
Local character & heritage: renovating flats in St John's Wood
St John's Wood sits in the City of Westminster, and a large share of its homes are leasehold flats — within substantial detached stucco villas and grand mansion blocks. Refurbishing one is a full interior project: reconfiguring the layout, renewing services and finishes, and often combining or reworking rooms within the existing footprint.
The work runs under the lease, so the freeholder's or managing agent's consent sits alongside Building Regulations and party-wall notices may be needed for qualifying work; external elements such as windows stay controlled in conservation areas. Because Westminster protects the original villa-suburb spacing and the green front-garden setting, we coordinate the lease, the freeholder and the build as one fixed-price contract.
St John's Wood heritage & architecture: Apartment refurbishment · Converting large houses · Detached Villas of St Johns Wood · How the area was built · Basement extensions · Best streets for family homes
Flat Refurbishment in St John’s Wood: Planning & Local Context
Westminster City Council · NW8
Planning for flat refurbishment in St John’s Wood
For a leasehold flat in St John's Wood, establish any required freeholder or managing-agent consent from the lease and proposed alterations. Confirm the relevant planning authority for the address (Westminster). Planning, listed-building and Building Regulations requirements are assessed separately from permission under the lease.
Westminster City Council & St John’s Wood Conservation Area context
Check the address and proposed alterations with Westminster, including the applicable conservation-area boundary, any Article 4 direction and the building's listing status. An Article 4 direction concerns specified properties and works; it does not make every renovation a planning application. Listed-building consent may be needed for work affecting a listed building's special interest, including internal work. Planning permission, lease consent and Building Regulations are separate checks.
Building Regulations
Flat Refurbishment in St John’s Wood must satisfy Building Regulations — covering sound insulation to Part E, fire compartmentation to Part B, and certified electrical and plumbing works. Our in-house engineers manage Building Control from initial notice through to the completion certificate.
Recent work & local links
See recent St John’s Wood work: Mansion-flat refurbishment, St John’s Wood. Explore our Kitchen Renovation Loft Conversions in St John’s Wood, or the St John’s Wood hub.
Planning and building-control submissions follow the address and agreed scope. View our planning track record →
Guides & Local Reading
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