Loft conversion and extension project in Mayfair by Bluebird Spaces
    Mayfair W1

    Prestige Townhouse Builders in Mayfair

    Discreet, high-specification renovations for Mayfair's finest addresses.

    Mayfair properties — from Georgian townhouses on Mount Street to mews houses off Grosvenor Square — demand a builder who delivers exceptional quality with absolute discretion. We bring that precision to every project.

    Local project guide

    Planning a Mayfair refurbishment

    Mayfair work is usually approval and logistics heavy. Listed buildings, conservation policy, estate requirements and occupied neighbours can all shape the design and sequence, so we define the consent route and site rules before agreeing the construction programme.

    What to check before choosing a contractor

    • Check listed status, conservation controls and any estate licence alongside normal planning requirements.
    • Survey existing mechanical and electrical services before committing to a new room layout.
    • Lock down bespoke finishes and samples before ordering to reduce programme risk.
    Check Westminster City Council guidance

    Mayfair: estates and the Westminster code

    We haven't got a Mayfair job on the site yet. The nearest work we can show you is in Chelsea and Holland Park, and both are on our projects page.

    Two sets of permission

    A lot of Mayfair sits on the Grosvenor estate. Freehold owners there go through Grosvenor's alterations process, and leaseholders need consent under their lease. That's on top of Westminster's planning. For a basement, Westminster also wants a Construction Management Plan under its Code of Construction Practice, submitted at least 40 working days before work starts.

    Our Services in Mayfair

    Georgian Townhouse Renovation

    Comprehensive renovation of Mayfair's Georgian properties — from structural works and M&E upgrades to bespoke joinery and stone restoration.

    • 6–14 month programmes
    • Estate consent requirements checked
    • Priced at site visit
    Learn more →

    Mews House Conversion

    Transforming Mayfair mews properties into contemporary living spaces while respecting their unique proportions and heritage character.

    • 3–6 month build
    • Priced at site visit
    • Planning and party-wall requirements checked
    Learn more →

    Mayfair Cost Guide

    TypeTypical CostPlanning?
    Mews House RenovationPriced at site visitOften yes
    Georgian Townhouse RefurbPriced at site visitYes
    Basement ConversionPriced at site visitYes
    High-Spec KitchenPriced at site visitNo
    Full M&E UpgradePriced at site visitNo

    All projects are priced individually after a site visit. Quotes exclude VAT and professional fees (design, structural engineer, Building Control, party wall and planning fees), which are quoted separately; access and logistics can affect the final price. Mayfair estate requirements may add complexity — detailed quote provided after site survey and freeholder consultation.

    Next step

    Discuss your Mayfair project

    Tell us what you are considering and choose a callback or site visit. We will review the property, scope and likely approval route before preparing a clear, itemised proposal.

    • Federation of Master Builders member
    • No deposit upfront; weekly payments for completed work
    • Itemised quote with VAT and exclusions stated clearly

    Request a Mayfair callback or site visit

    We'll confirm your callback or site visit within 24 hours.

    Common Questions

    Yes. We can work within the Grosvenor Estate's consent process alongside Westminster planning. Freehold owners go through Grosvenor's alterations scheme, and leaseholders need consent under their lease. We haven't completed a Mayfair job yet, so we'd go through the estate's requirements with you before pricing.

    Yes. Mews houses have small footprints, so the work is mostly about layout, light and storage, within Westminster's conservation rules and any estate consent. Our nearest finished work is in Chelsea and Holland Park, on our projects page.

    We'd keep the site clean and tidy, agree deliveries and working hours with porters and neighbours, and give you one person to contact throughout.

    Most require Westminster planning consent due to conservation area status. Listed buildings need additional listed building consent. Grosvenor Estate properties also need estate approval. We can coordinate these with your architect and the estate.

    6–14 months depending on scope, listed building requirements, and estate approvals. We provide a detailed programme with key milestones before work starts.
    Get Started

    Ready to talk about your project?

    Free site visit, then a fixed-price quote. No deposit upfront.