Areas / Westminster
Architects in Westminster
From the terraces of Pimlico and Bayswater to the mansion flats of Maida Vale and the villas of St John's Wood, many Westminster homes are in conservation areas, so extensions are usually modest rear, roof and basement work.
RIBA Chartered Practice · ARB-registered architects · Extensions, lofts and planning drawings
- FreeInitial consultationA conversation about your project, and a first view of what's possible, before any fee is agreed.
- FixedFee for each stageEvery stage is priced in writing before it starts. No hourly billing.
- 3DSee the design firstYour design is shown in 3D before it's submitted, while changes are still easy.
- FreeResubmissionIf planning is refused, we revise and resubmit at no extra design fee. Conditions
Local planning points
Planning in Westminster
Checked October 2026. Planning policy changes, so we confirm the position for your address before you commit.
There are 56 conservation areas in Westminster.
SourceThe City Plan 2019-2040 (2026) was adopted on 21 January 2026 after a partial review, replacing the 2021 version; work on a full new City Plan began in 2026.
SourceThe 2026 City Plan brings in a retrofit-first approach before demolition, and for the first time developments of fewer than 10 homes must contribute to affordable housing.
SourceSelective licensing of private rented homes started on 24 November 2025 and covers 15 of Westminster's 18 wards.
SourceA renewed borough-wide additional HMO licensing scheme runs from 31 August 2026 to 30 August 2031.
Source
Postcodes
Westminster by postcode
13,106 postcodes in 34 postcode districts, 4.9 miles from our studio in Cricklewood.
- NW120% in Westminster
- NW63% in Westminster
- NW885% in Westminster
- SW1Aall in Westminster
- SW1Eall in Westminster
- SW1Hall in Westminster
- SW1P63% in Westminster
- SW1Vall in Westminster
- SW1W84% in Westminster
- SW1X52% in Westminster
- SW1Yall in Westminster
- SW726% in Westminster
- W1Ball in Westminster
- W1Call in Westminster
- W1Dall in Westminster
- W1Fall in Westminster
- W1Gall in Westminster
- W1Hall in Westminster
- W1Jall in Westminster
- W1Kall in Westminster
- W1Sall in Westminster
- W1T26% in Westminster
- W1Uall in Westminster
- W1Wall in Westminster
- W291% in Westminster
- W992% in Westminster
- W1025% in Westminster
- W115% in Westminster
- WC2A23% in Westminster
- WC2B47% in Westminster
- WC2Eall in Westminster
- WC2H47% in Westminster
- WC2Nall in Westminster
- WC2Rall in Westminster
Where a postcode district is shared, neighbouring streets can fall under a different council. The checker below gives the answer for an exact postcode.
Postcode checker
Which council decides your application?
Type any postcode in the 33 London boroughs we cover. We'll tell you which council handles planning there and show you the local planning points.
Services
What we draw in Westminster
- House extensions
- Loft conversions
- Basement conversions
- Planning permission
- Building regulations drawings
- Structural calculations
- Flat conversions
- Change of use
- New builds
- Interior design
Neighbourhoods we cover include Maida Vale, St John's Wood, Marylebone, Pimlico, Bayswater and Queen's Park.
Neighbouring councils: Camden, Kensington and Chelsea, Wandsworth, Ealing, Brent, Islington.