Central London · W1K
Builders in Mayfair
Construction in Mayfair
Mayfair combines Georgian townhouses, purpose-built mansion blocks, converted mews properties and mixed-use buildings with commercial ground floors. A high proportion of the stock is listed or within the Mayfair conservation area, and many buildings run residential upper floors above offices or retail, which shapes fire strategy, acoustics and how services are routed.
Foxter works throughout Mayfair and the surrounding W1K postcode district, covering loft conversions, extensions, whole-house renovations, kitchens, bathrooms, basements, roofing, landscaping and commercial fit-out. Every project is run by one site manager coordinating the trades, so you have a single point of accountability from survey to snagging.
Westminster's kerbside is heavily managed: loading bays need booking, skip permits are restricted, congestion and ULEZ charges apply, and noise-sensitive hours are enforced. Mews access can be too narrow for larger vehicles, so we plan hoisting, small-vehicle deliveries and off-site fabrication into the programme rather than improvising on site.
Work in Mayfair is usually full property renovation, lateral flat combinations, mews house remodelling and high-specification fit-out where joinery, stone and lighting are made off site and installed to a tight sequence. Where extensions are feasible they tend to be mews roof or rear additions, terrace enclosures and lower-ground-floor remodelling rather than large rear boxes.
Listed building consent, party wall awards and building control sign-off are coordinated with the appointed architect, engineer and surveyors as part of the programme. We set out early which elements are consent-dependent so the parts that can proceed are not held up by the parts that cannot.
Before we quote we visit the property, measure it and write a scope of works. That matters more in Mayfair than a per-metre average, because two houses on the same street can have completely different structure, drainage and consent constraints.
Area at a glance
- Area
- Mayfair
- Postcode district
- W1K
- London region
- Central London
- Portfolio examples
- 1
- Response time
- Site visit typically within 5 working days
Our services in Mayfair
Loft conversions Mayfair
Turn dead roof space into the best room in the house
Read more →House extensions Mayfair
Rear, side-return, wrap-around and double-storey extensions
Read more →Home renovations Mayfair
Whole-house refurbishment, stripped back and rebuilt properly
Read more →Kitchen renovations Mayfair
Bespoke and designer kitchens, installed by one team
Read more →Bathroom renovations Mayfair
Waterproofed properly, finished beautifully
Read more →Basement conversions Mayfair
Dig-outs, tanking and habitable lower-ground space
Read more →Indoor swimming pools Mayfair
Tanked, heated and environmentally controlled pool halls
Read more →Outdoor swimming pools Mayfair
Concrete tanks, heating, covers and landscaped surrounds
Read more →Garden design Mayfair
Terraces, planting, lighting and outdoor rooms
Read more →Landscaping Mayfair
Hard and soft landscaping, levels, walls and drainage
Read more →Roofing Mayfair
Slate, tile, flat roofs, leadwork and full re-covers
Read more →Commercial construction Mayfair
Refurbishment and fit-out delivered around your trading hours
Read more →Shop fit outs Mayfair
Shopfronts, signage and retail fit-out that opens on time
Read more →Plumbing Mayfair
Full re-pipes, bathroom services, boilers and hot water systems
Read more →Electrical Mayfair
Rewires, consumer units, lighting design and certification
Read more →Carpentry Mayfair
Bespoke joinery, wardrobes, staircases and structural carpentry
Read more →Mayfair portfolio examples
Illustrative concept case studies — not records of specific client contracts.
Working in Mayfair: what to expect
Listed building consent
Many W1K buildings are listed. Internal alterations can require consent as well as external ones, so we identify protected features — staircases, panelling, chimneypieces, window joinery — at survey stage.
Mixed-use buildings
Where homes sit above commercial units, compartmentation, fire stopping and acoustic separation must be maintained. We coordinate with building management so trading below is not disrupted.
Off-site fabrication
Restricted access and short working hours make on-site fabrication expensive. Bespoke joinery, stone and metalwork are made off site and installed in scheduled visits.