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Georgian brick terrace with sash windows, arched fanlight doorways, stone steps and iron railings in London
Photograph: Lorenc Memaga

01Areas we cover

Architectural drawings for houses in Mayfair

A Mayfair house sits inside one conservation area, in a borough that holds 4,015 list entries. We prepare the planning, listed building consent and Building Regulations drawings that answer both layers, and we start with a constraints check that costs you nothing.

Fixed quote after a free constraints check

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    02The record

    Mayfair on the record

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Conservation areaMayfairdesignated 1990-01-01westminster.gov.uk
    Local factMayfair was first designated as a conservation area in 1969 and extended in 1974, 1979 and 1990.No periodwestminster.gov.uk
    Local planning considerationWestminster's 2004 mini guide states that the whole Mayfair Conservation Area is covered by a Regulation 7 direction requiring consent for estate agents' boards.No periodwestminster.gov.uk
    Local planning considerationPart of Mayfair lies in the Tyburn Settlement Area of Special Archaeological Priority, which extends 100m south of Oxford Street from Binney Street to Woodstock Street.No periodwestminster.gov.uk
    Local planning considerationWestminster's City Plan 2019-2040 (2026), Policy 50, supports basements only where they extend under no more than 50% of the garden land and are no more than one storey beneath the lowest original floor level, with exceptions for large sites.No periodwestminster.gov.uk
    Local factMini guide records the whole CA is under a Regulation 7 direction (consent for estate agents' boards); it lists no Article 4 directionNo periodwestminster.gov.uk
    Conservation areas56 named conservation areas published by the councilNo periodplanning.data.gov.uk
    Article 4 directions10 Article 4 directions published by the councilNo periodplanning.data.gov.uk
    Listed building entries4,015 list entries (Historic England, within the LPA boundary)No periodplanning.data.gov.uk
    Listed building consents granted (PS2)90.5 % granted2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk

    A blank value means the figure has not been published, not that there are none. Check your own address with the council.

    Mayfair1 conservation area
    Conservation areas named for Mayfair
    • Mayfair: designated 1 January 1990
    Rear view of brick terraced houses in London with slate roofs and chimney stacks along the shared roofline
    Photograph: Ben Hadfield

    03The drawing

    Constraints check: WestminsterA, Conservation areas: 56 named conservation areas published by the council. B, Article 4 directions: 10 Article 4 directions published by the council. C, Listed building entries: 4,015 list entries (Historic England, within the LPA boundary). D, Heritage at Risk entries: 23 Heritage at Risk Register entries within the LPA boundary (Historic England)56Conservation areasA10Article 4 directionsB4,015Listed building entriesC23Heritage at Risk entriesD

    Constraints check: Westminster

    What we check first on any address in Westminster. Counts are for the whole council area.

    A Conservation areas
    56 named conservation areas published by the council
    B Article 4 directions
    10 Article 4 directions published by the council
    C Listed building entries
    4,015 list entries (Historic England, within the LPA boundary)
    D Heritage at Risk entries
    23 Heritage at Risk Register entries within the LPA boundary (Historic England)
    A period street in three dimensions3D
    Scroll the page: the model turns with it.

    04The brief

    One conservation area, extended in stages

    The Mayfair Conservation Area is a single designation. Mayfair was first designated as a conservation area in 1969 and extended in 1974, 1979 and 1990. Because the boundary moved more than once, we check which phase your street belongs to before we read the rest.

    The council's guide to the area is the Mayfair mini guide (Westminster, May 2004). It is the first document we read for a Mayfair address, alongside the council's current register.

    Upper floors of a large yellow-brick Victorian house in London with chimney pots

    05The detail

    What the guide says about consents

    Westminster's 2004 mini guide states that the whole Mayfair Conservation Area is covered by a Regulation 7 direction requiring consent for estate agents' boards. That direction concerns boards and signage, not alterations to the house.

    On the house itself, the same guide lists no Article 4 direction for Mayfair. An older guide is a starting point and not the last word, so we check the council's live record for your address before we choose a route.

    Mews houses, roofs and Westminster's own guidance

    Westminster publishes two documents that bear on a Mayfair house: "Mews: a guide to alterations SPG" and "Roofs: a guide to alterations and extensions on domestic buildings SPG". A mews house and a terraced townhouse need different arguments, and we draw each against the guide that fits it.

    A roof storey on a house in a conservation area is a householder planning application. For the principles and the fees, see mansard roof drawings.

    Digging down in Mayfair

    Westminster's City Plan 2019-2040 (2026), Policy 50, supports basements only where they extend under no more than 50% of the garden land and are no more than one storey beneath the lowest original floor level, with exceptions for large sites. Our basement conversion drawings page shows how that limit shapes a plan.

    Part of Mayfair lies in the Tyburn Settlement Area of Special Archaeological Priority, which extends 100m south of Oxford Street from Binney Street to Woodstock Street. An excavation here is therefore the kind of project where we raise archaeology with you at the start.

    Westminster's heritage record

    Historic England lists 205 entries at Grade I, 373 at Grade II* and 3,419 at Grade II across the borough, and 23 entries sit on its Heritage at Risk Register. The council decided 1,553 listed building consent applications to alter or extend in its latest published year and granted 90.5% of them.

    Those figures describe the borough's past decisions, not your application. If your house is listed, begin with listed building consent drawings and the neighbouring guide to Marylebone's conservation areas.

    Planning sheet for a single-storey rear extension: proposed ground floor plan and rear elevation, with the Property Architecture title block
    Sample drawing. Proposed plan and rear elevation from a planning application set, sheet 03 at 1:50.

    06The papers

    What the drawings rest on

    Rows of brick terraced houses and gardens on a residential streetPlanning drawings
    Photograph: Altaf Shah
    Building regulations section through a rear extension, with the roof, floor, wall and foundation build-ups labelled
    Sample drawing. Section A-A with the build-ups building control checks, sheet 07 at 1:50.

    07Correspondence

    Questions

    Which stage of the Mayfair boundary does my street belong to?

    Mayfair was first designated as a conservation area in 1969 and extended in 1974, 1979 and 1990. A street added in a later stage can read differently from the original core, so we date your street's entry before we read the council's guide against it.

    Does Mayfair have an Article 4 direction?

    Westminster's guide to the area records a direction covering estate agents' boards and lists no Article 4 direction for the area. The guide is old, so we confirm against the council's current register for your address.

    Can I add a basement to a Mayfair house?

    Westminster supports basements only within limits on garden extent and depth, set out in its City Plan. We read the limits against your plot, then draw the scheme and coordinate the structural calculations.

    How are fees set for a Mayfair townhouse or mews?

    Each job is one fixed sum, VAT included, agreed after the free constraints check. A listed front or a mews frontage adds drawings, and the quote says so. Basement drawings begin at £1,995. Westminster's application fee is yours to pay to the council.

    Red-brick mansion blocks and shopfronts on a street corner

    90.5%

    granted

    Listed building consents granted (PS2), Westminster, 2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026). Source: assets.publishing.service.gov.uk

    Photograph: Tom McCarten

    08Further reading

    Nearby neighbourhoods

    09Sources

    Sources and dates

    Licences

    Kensington street lined with brick townhouses and lit streetlamps beneath an orange dusk sky

    Send us the address of your house.

    We look up the conservation area, listing and Article 4 position, then reply with a fixed fee. A message before 3pm is answered the same working day.

    Ask for a fixed feeCall 020 7864 7245WhatsApp
    Architectural drawings in Mayfair, Westminster