Flat
refurbishment
in Fitzrovia, W1T
Architects, Engineers, Surveyors & Builders Under One Roof.
One Studio. One Contract. One Team.
Hampstead Chartered Surveyors & Building ConsultancyFitzrovia's flats are mostly in houses that were divided as the area changed, and in Victorian tenement blocks above shops on the Westminster side. Each type limits a refurbishment in its own way.
Refurbishing a flat in Fitzrovia starts with a question of jurisdiction. Fitzrovia sits across the City of Westminster and the boundary with Camden, so both councils' controls can apply at the edges; conservation scrutiny is close and the streets are narrow, and we confirm which authority applies at the outset.
The stock reflects the area's mixed grain. Its Georgian townhouses, Regency terraces and mansion flats — many listed, much of it leasehold — sit alongside a busy run of media offices and restaurants, which shapes how works are planned. Fitzroy Square is a Robert Adam set-piece of fine Georgian houses; Charlotte Street and Goodge Street mix period townhouses with flats above the restaurants; and Warren Street adds mansion flats and conversions.
A site assessment, agreed scope and specification are needed before the work can be quoted.
A flat brief across a varied building stock
In a Fitzrovia conversion or mansion flat, establish the structure and shared services before comparing layout options. Check the exact address for the responsible council and building-management arrangements, then define the access route and protection needed for the common parts.
Refurbishing a flat in a Fitzrovia townhouse or mansion block
A Fitzrovia flat may be part of a subdivided Georgian townhouse, sit above a shop or belong to a mansion block, each sharing structure and services differently. Read the lease's conditions on floors, services, windows and shared parts before planning a layout, and find out who controls the building's drainage, water and isolation valves.
Source: Charlotte Street conservation area appraisal and management strategy, 24 July 2008 · LEASE: alterations and home improvements
Where a conversion has already notched joists or shifted partitions, lift a section of floor and check its framing before choosing stone or a deeper build-up. Approved Document E covers sound for particular kinds of work; settle acoustic layers and floor depth with the lease in mind, as the household below hears whatever the new floor transmits.
Source: When Building Regulations approval is needed · GOV.UK: Approved Document E, resistance to sound · LEASE: alterations and home improvements
Test repair, draught-proofing or secondary glazing on each window before pricing new frames. The Charlotte Street and Fitzroy Square appraisals say inappropriate windows can harm a roofscape, and in a listed building new windows can need listed building consent, so confirm the position before any order is placed.
Source: Charlotte Street conservation area appraisal and management strategy, 24 July 2008 · Fitzroy Square conservation area appraisal and management strategy, 16 March 2010 · Historic England: listed-building consent · Westminster: listed buildings and listed building consent
Permissions to check for a Fitzrovia flat
Whether the flat is above a shop, in a subdivided townhouse or in a mansion block, the lease decides whether the landlord's written consent is needed and what conditions come with it. That private consent runs alongside planning, listed building consent and Building Regulations, and securing one leaves the others to settle.
Source: LEASE: alterations and home improvements · Historic England: listed-building consent · When Building Regulations approval is needed
Interior work in a flat is generally not development, but flats have no Part 1 householder rights, so any new window, vent or other exterior change needs its own planning check. In Westminster, City Plan Policy 12 protects existing homes, though a flat that is not family-sized may merge with another once options to extend it have been explored.
Source: When planning permission is required · Householder permitted development technical guidance · City Plan 2019–2040 (2026), adopted 21 January 2026
If the building is listed, Westminster requires consent for any works inside the flat affecting its special interest, and both councils warn that proceeding without it is a criminal offence. Where a taller mansion block is a higher-risk building, most work needs Building Safety Regulator approval. Cutting into a wall shared with the next building may need Party Wall Act notice.
Source: Westminster: listed buildings and listed building consent · Camden: listed buildings and listed building consent · Historic England: listed-building consent · GOV.UK: Building Regulations approval · Party-wall work requiring notice
Working inside a shared Fitzrovia building
Measure the way in from the kerb, including any street door beside a shop and every turn of the common stair, before ordering long or heavy items. Brief the building manager and any business below, and agree how shared parts will be protected and when the building's water or power may be isolated.
Source: LEASE: alterations and home improvements
Under both councils' rules, noisy work can run 8am–6pm on weekdays and 8am–1pm on Saturdays, with Sundays and bank holidays kept quiet, yet a lease or house rules may be stricter. Westminster gives out-of-hours consent only in exceptional circumstances, and Camden asks for that consent to be sought at least 28 days ahead.
Source: Westminster: construction noise and permitted hours · Camden: noisy building works and prior consent · Westminster Code of Construction Practice, May 2026 · LEASE: alterations and home improvements
For a skip in a parking bay, Westminster needs ten working days' notice of the suspension; Camden wants bay suspensions booked at least 17 days ahead and accepts skip licence applications only from the skip company. For a scaffold or hoarding on Euston Road, a TfL red route, apply to TfL rather than the council.
Source: Westminster: parking bay suspensions · Westminster: skip licences · Camden: parking bay suspensions · Camden: skip licences · TfL: red routes and the TLRN map · TfL: highway licences on red routes
What to gather for a Fitzrovia flat quotation
Give the full address and the flat's floor, and say whether it is in a mansion block, a converted townhouse or above a shop or business. Photograph the rooms, the entrance, the common stair and any damp, and mark where you believe the shared stack and risers run.
Pass on the lease, any house rules from the managing agent and correspondence about consent, together with old drawings, past planning or listed building decisions and building control certificates. If you know whether Westminster, Camden or the Oxford Street Development Corporation handles planning for the address, include that too.
Source: LEASE: alterations and home improvements
Separate settled decisions, such as repairs, layout and finishes, from items waiting on opening up, the landlord's reply or a measured survey, so the quotation can carry them as provisional. Agree who applies for each consent and licence, who books inspections, and how variations and completion records will be kept.
What does a flat refurbishment cost in Fitzrovia?
A written scope and site assessment are needed before any project price can be fixed.
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.
Flats in Fitzrovia: divided houses and Victorian blocks
Camden's Fitzroy Square appraisal explains that as the area lost status in the later 19th century, large single family homes were subdivided into offices, flats, shops and small businesses. Some have since come back to residential use, as flats or as single houses, so a flat may sit in a building still shared with offices.
Across Cleveland Street, Westminster's audit records that many properties have been divided into several flats while others keep commercial premises on the ground floor, and that one stretch of the street ends in a block of Victorian mansion flats.
Further west, in the East Marylebone area, Victorian housing began as modest flats and tenement blocks, many above shops, and the audit notes a considerable working and growing residential population. In those buildings the risers, windows and structure belong to the block.
For a Fitzrovia leaseholder the lease comes before the drawings. LEASE notes that the landlord's consent may be needed even where no planning permission is, and that a lease may insist on carpeted floors, which rules out timber or stone without the landlord's agreement.
Camden and Westminster publish the same limits for noisy work, ending at 6pm on weekdays and at 1pm on Saturdays, so strip-out and chasing in a shared building are planned to finish inside them.
Many flats sit in listed townhouses, notably on Goodge Place and Percy Street, where most of the Georgian houses are listed. Because a listing covers the interior and any later additions, Camden says, a flat there is refurbished around its original plan and joinery.
The Fitzroy Square appraisal records that the streets around the square were designated in 1980 and added to the Bloomsbury Conservation Area. Flats in those streets are therefore in a conservation area even where their building is unlisted.
On the Westminster side, the East Marylebone audit describes blocks set back from the street behind railed basement lightwells and others built above small groups of shops; a lower-ground flat in the first kind gets its light from that lightwell.
Shared stairs in these buildings are often narrow, so large items such as baths and worktops are measured against the stair before they are ordered.
Where a flat shares a party wall with a workshop or studio, we check the wall's construction and add acoustic lining on our side only after agreeing it with the freeholder.
A related project, not in Fitzrovia, is Phillimore Gardens, Kensington: a whole-floor apartment refurbishment with bespoke cabinetry in Kensington. We point to it because the work is comparable; the project itself is outside Fitzrovia.
In a building shared with offices, we time the noisiest work for when the offices are least occupied, where the freeholder allows it, and keep the common stair protected throughout.
Sources: Camden Council: Fitzroy Square conservation area appraisal and management strategy (adopted 16 March 2010); Westminster City Council: Cleveland Street conservation area audit (SPG, adopted 11 April 2006); Westminster City Council: East Marylebone conservation area audit (SPG, adopted 17 March 2006); LEASE: alterations and home improvements; Camden Council: noisy building works; Westminster City Council: noise problems we can investigate; Camden Council: Charlotte Street conservation area appraisal and management plan (adopted 24 July 2008); Camden Council: listed buildings.
Flat Refurbishment in Fitzrovia: Questions
Which council covers a flat refurbishment in Fitzrovia?
It can be either. Fitzrovia sits across Westminster and the boundary with Camden, and the address determines which council's controls apply, so we confirm which authority is responsible for your address before any application is prepared.
What is the Fitzrovia flat stock like?
Historic and mixed-use. Its Georgian townhouses, Regency terraces and mansion flats — many listed and much of it leasehold — sit within a busy grain of media offices and restaurants, which shapes how a flat refurbishment is planned and sequenced.
How much does a flat refurbishment cost in Fitzrovia?
Listing, the lease and central-W1 logistics then move the figure.
What drives the budget on a Fitzrovia flat?
Central W1 access and storage, terrace structure, mansion-flat acoustics, freeholder approvals, facade restraint, services upgrades and party-wall coordination with close neighbours — the constraints of a dense central quarter — all feed the number.
Which Fitzrovia streets do you work on?
Fitzroy Square, a Robert Adam set-piece of fine Georgian houses; Charlotte Street and Goodge Street, mixing period townhouses with flats above the restaurants; and Warren Street with its mansion flats and conversions.
