Flat
refurbishment
in Belgravia, SW1X
Architects, Engineers, Surveyors & Builders Under One Roof.
One Studio. One Contract. One Team.
RICS surveying support for party walls, licence to alter, conservation-area works & neighbour mattersWe've completed flat refurbishments across Eaton Square mansion flats, Belgrave Court, Lowndes Square - mansion blocks and period conversions where freeholder approvals, acoustic compliance and access logistics need handling properly.
Flat Refurbishment in Belgravia: What You Need to Know
Refurbishing a Belgravia flat is not the same as refurbishing a house. The Licence to Alter is usually required before a single brick moves, Part E of the Building Regulations dictates floor and ceiling build-ups, and site logistics must account for lift protection, works-hours restrictions, and neighbour disruption. Our team manages freeholder surveyors, Party Wall awards, and Westminster Building Control in parallel so your project starts cleanly and finishes without disputes.
Ultra-prime Grosvenor Estate neighbourhood with sweeping white stucco crescents. Belgrave Square, Eaton Square, and Chester Square. Westminster conservation area with the highest planning standards. A full refurbishment in Belgravia typically involves stripping the property back to its structural shell, upgrading mechanical and electrical services, reconfiguring layouts, and finishing to the highest standard — all while preserving and restoring original period features.
Our Belgravia refurbishment projects are managed through a single point of contact, coordinating architects, structural engineers, M&E specialists, and specialist subcontractors. We work within Westminster's planning and building control requirements to deliver on time and on budget.
Flat refurbishment in Belgravia: what actually drives the project
Belgravia is Thomas Cubitt’s white-stucco terraces around Belgrave, Eaton and Chester Squares, with mews houses behind and substantial mansion flats, much of it listed and largely leasehold on the Grosvenor Estate.
Belgravia sits inside the Belgravia Conservation Area with a high concentration of listed buildings. Westminster consent, Grosvenor Estate consent, Listed Building Consent and Licence to Alter requirements can all apply to one project.
The budget is driven by traditional stucco and joinery repair, conservation-grade windows, structural care inside protected terraces, basement engineering, waterproofing, party-wall awards and estate logistics.
Planning a Belgravia refurbishment? Tell us the address and we will cover listing, estate consent and party walls up front. Tell us about your project →
Flat Refurbishment in Belgravia: Applied to the Local Stock
Almost all of Belgravia lies in the Belgravia Conservation Area with a high concentration of listed buildings. Belgravia sits in the City of Westminster, almost wholly within the Belgravia Conservation Area and largely on the Grosvenor Estate. Belgravia sits inside the Belgravia Conservation Area with a high concentration of listed buildings.
Sources: Westminster City Council — Belgravia Conservation Area mini guide (May 2004) (2026)
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
How We Run Your Project
Six stages, sequenced so freeholder consent never holds up the start on site.
- 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.
Almost every leasehold flat needs formal freeholder consent — a Licence to Alter — before structural work, new flooring or services alterations can begin, and proceeding without one puts your lease at risk. Building Regulations apply on top: Part E sound insulation between dwellings, electrical and heating sign-off, and fire safety where walls or floors are opened. Flats and maisonettes also have no permitted development rights, so external changes always need a planning application. Our planning guide library covers the rules borough by borough.
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 and a 10-year workmanship warranty. Enquire before 2pm on a weekday and we will call you back the same day.
What does a flat refurbishment cost in Belgravia?
A flat refurbishment in Belgravia 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.
Flat Refurbishment in Belgravia: Questions
Does the Grosvenor Estate have a say in a Belgravia flat refurbishment?
On most of Belgravia, yes. The mansion flats here are substantial leasehold homes, and projects are coordinated with Westminster planning and the Grosvenor Estate's consent together. A single scheme can attract Westminster consent, estate consent, Listed Building Consent and a Licence to Alter all at once — so we map the full approvals picture before the design is fixed.
Does listed building consent cover the inside of a Belgravia flat?
Frequently, yes. Almost all of Belgravia sits within the Belgravia Conservation Area with a high concentration of listed buildings, and while Westminster and the Grosvenor Estate both consent external change, it is listed building consent that governs the interiors. We confirm the listing position at the outset so the internal design is drawn to what can actually be approved.
How much does a flat refurbishment cost in Belgravia?
Our headline range for a flat refurbishment in Westminster is £60,000–£110,000 excluding VAT, which mirrors the London-wide band for a full refurbishment of a two-bedroom flat. Belgravia projects are priced individually once the lease, the listing and the estate requirements are understood, since those shape the scope as much as the specification does.
Recent Projects Near Belgravia
Local character & heritage: renovating flats in Belgravia
Belgravia sits in the City of Westminster, and a large share of its homes are leasehold flats — within grand cream-stucco Cubitt terraces and garden squares around Eaton and Belgrave Squares. 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 the Party Wall Act usually applies between flats; external elements such as windows stay controlled in conservation areas. Because a very high proportion of buildings are listed and many are now flats or embassies, we coordinate the lease, the freeholder and the build as one fixed-price contract.
Belgravia heritage & architecture: Renovating a flat · Kitchens in period flats · Licence to alter · Mansion flats · Conservation areas · Roof developments & conservation
Flat Refurbishment in Belgravia: Planning & Local Context
Westminster City Council · SW1X
Planning for flat refurbishment in Belgravia
Flat refurbishment in Belgravia sits across two consent regimes: Westminster City Council for planning and building control, and your freeholder for a licence to alter covering structural changes, new services and floor build-ups — essential within Belgravia's conservation areas and most mansion blocks.
Westminster City Council context
Belgravia SW1X sits within Belgravia's conservation areas, and Westminster applies a demanding conservation and listed-building regime, and many mansion blocks and townhouses here are listed or sit within tightly controlled estates such as the Grosvenor, Howard de Walden and Crown estates. Belgravia sits within the Grosvenor Estate, which adds a separate licence regime on top of council consent. Our in-house RIBA Chartered Architects prepare and submit every application to Westminster City Council and handle pre-application discussions where early planning advice is useful.
Building Regulations
Flat Refurbishment in Belgravia 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 to completion certificate.
Recent work & local links
See recent Belgravia work: Carlton Lodge, Belgravia Greville House, Belgravia. Explore our Kitchen Renovation Loft Conversions in Belgravia, or the Belgravia hub · Refurbishment Company in Belgravia.
Our in-house planning team prepares and submits every Westminster City Council application and manages building control end to end. View our planning track record →
Guides & Local Reading
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We survey your property, discuss your vision and provide a clear budget framework.