Which postcode districts around Westminster do we cover for modern flat project work?
Every Westminster postcode district we draw in, the stock that dominates
it and the authority that validates a modern flat project there. Westminster fees below are the
statutory England rates for 2026, not modern flat project estimates.
| Postcode | Area | Dominant stock | What it means for a modern flat project |
|---|
| W1K | Mayfair | Georgian townhouses, listed buildings | Mayfair sits wholly inside W1K, so Westminster City Council validates every modern flat project submitted from an W1K address. |
| W1S | Mayfair / Hanover Square | Grand Georgian and Regency terraces in Belgravia and Pimlico; Victorian and Edwardian mansion blocks; heritage-rich townhouses throughout; very high listed building density | A modern flat project at an W1S address in Mayfair / Hanover Square is determined by Westminster City Council under its own Local Plan policies for Mayfair / Hanover Square. |
| W1U | Marylebone | Georgian terraces, Edwardian mansion blocks | Marylebone sits wholly inside W1U, so Westminster City Council validates every modern flat project submitted from an W1U address. |
| W1W | Fitzrovia / Great Portland Street | Grand Georgian and Regency terraces in Belgravia and Pimlico; Victorian and Edwardian mansion blocks; heritage-rich townhouses throughout; very high listed building density | A modern flat project at an W1W address in Fitzrovia / Great Portland Street is determined by Westminster City Council under its own Local Plan policies for Fitzrovia / Great Portland Street. |
| W2 | Bayswater / Paddington | Victorian stucco terraces | W2 covers Bayswater / Paddington only; Westminster City Council handles the modern flat project, and Bayswater / Paddington case officers apply the W2 conservation-area map. |
| W9 | Maida Vale | Victorian terraces, mansion blocks | Maida Vale sits wholly inside W9, so Westminster City Council validates every modern flat project submitted from an W9 address. |
| WC2B | Covent Garden / Holborn | Grand Georgian and Regency terraces in Belgravia and Pimlico; Victorian and Edwardian mansion blocks; heritage-rich townhouses throughout; very high listed building density | A modern flat project in Covent Garden / Holborn may land with Westminster City Council or Camden Council — WC2B crosses the boundary, and the WC2B policies map decides it street by street. |
| WC2E | Covent Garden | Georgian terraces, conversions | Covent Garden sits wholly inside WC2E, so Westminster City Council validates every modern flat project submitted from an WC2E address. |
What changes about a modern flat project in each part of Westminster?
Roof pitch, wall build-up and plot depth change every few Westminster
streets, and each one changes what a modern flat project can achieve at that address.
- Covent Garden (WC2E, WC2H) — Georgian piazza, listed buildings defines Covent Garden, where georgian terraces, conversions set what a modern flat project can do. across WC2E. Any Covent Garden modern flat project is validated by Westminster City Council, with Royal Opera House the usual Covent Garden reference point on the site plan.
- St John's Wood (NW8) — a modern flat project in St John's Wood starts from victorian villas, mansion blocks, and St John's Wood reads as Victorian villas, mansion blocks. in NW8. Westminster City Council assesses St John's Wood modern flat projects against its own St John's Wood character guidance, and the location plan we draw for St John's Wood references Lord's Cricket Ground.
- Bayswater (W2) — a modern flat project in Bayswater starts from victorian stucco terraces, and Bayswater reads as Victorian stucco terraces. in W2. Westminster City Council assesses Bayswater modern flat projects against its own Bayswater character guidance, and the location plan we draw for Bayswater references Hyde Park.
- Paddington (W2) — Regency and Victorian terraces, canal-side regen defines Paddington, where regency terraces, modern apartments set what a modern flat project can do. across W2. Any Paddington modern flat project is validated by Westminster City Council, with Paddington Basin the usual Paddington reference point on the site plan.
- Victoria (SW1E, SW1W) — a modern flat project in Victoria starts from regency terraces, post-war flats, and Victoria reads as Regency terraces, mixed-use. in SW1E. Westminster City Council assesses Victoria modern flat projects against its own Victoria character guidance, and the location plan we draw for Victoria references Victoria Station.
- Westbourne Green (W2, W9) — modern flat project work in Westbourne Green means victorian terraces, mansion blocks. Westbourne Green is Victorian terraces and mansion blocks. throughout W2. Westminster City Council decides the Westbourne Green application, and Royal Oak anchors the Westbourne Green location plan.
- Maida Vale (W9) — Edwardian mansion blocks, canal-side defines Maida Vale, where edwardian mansion blocks, victorian villas set what a modern flat project can do. across W9. Any Maida Vale modern flat project is validated by Westminster City Council, with Little Venice the usual Maida Vale reference point on the site plan.
What local planning policy applies to a modern flat project in Westminster?
Conservation areas covering Westminster: Westminster City Council runs 56, and St John's Wood, Mayfair, Belgravia are the ones Westminster owners meet most. A modern flat project inside a Westminster conservation area loses permitted development, so the Westminster submission is a householder application at £258 decided in 8 weeks — not a £120 prior approval decided in 6 weeks. In Marylebone a modern flat project is judged on the street elevation first.
Westminster and Article 4: Multiple Article 4 Directions — office-to-residential restrictions, HMO conversions, retail to residential in shopping zones. A modern flat project planned at a NW8 address is checked against that direction first; Westminster City Council publishes the Westminster extent, and the NW8 line rarely follows the Westminster boundary you would expect.
Digging below a Westminster property: Westminster basement policy restricts to single-storey, typically under 50% of rear garden footprint; lightwells and rooflights strictly controlled in conservation areas. Where a modern flat project in Westminster involves excavation that is read beside the Party Wall etc. Act 1996, which needs two months notice for a Westminster dig within 3 m of a neighbour, and Westminster City Council expects the NW8 ground conditions addressed in the application.
The building fabric around Westminster: Grand Georgian and Regency terraces in Belgravia and Pimlico; Victorian and Edwardian mansion blocks; heritage-rich townhouses throughout; very high listed building density. Heritage-first planning approach; listed buildings on almost every street; basement and rear extension policies particularly strict. A modern flat project in Westminster is scoped against that stock first. Our Westminster fixed fee starts at £840; the £1,750 Complete package runs the Westminster scheme through Westminster City Council planning and building control in one go.
Which neighbouring authorities border Westminster?
- Camden — cross the Westminster boundary and Camden Council takes the modern flat project instead, applying 40 conservation areas of its own around NW1. We re-price modern flat projects at the Westminster edge because Camden policy and Westminster policy rarely align on modern flat project depth.
- Kensington and Chelsea — cross the Westminster boundary and RBKC Planning takes the modern flat project instead, applying 38 conservation areas of its own around SW1. We re-price modern flat projects at the Westminster edge because Kensington and Chelsea policy and Westminster policy rarely align on modern flat project depth.
- Wandsworth — adjoining Westminster, with 45 conservation areas centred on SW8. A modern flat project on the far side of the Westminster line is determined by Wandsworth Council, so the Westminster quote for modern flat projects is checked against Wandsworth guidance before it is issued.
- Lambeth — adjoining Westminster, with 64 conservation areas centred on SE1. A modern flat project on the far side of the Westminster line is determined by Lambeth Council, so the Westminster quote for modern flat projects is checked against Lambeth guidance before it is issued.
Sources for this Westminster modern flat project page: borough policies maps and
conservation-area registers (2025–26), Royal Mail postcode district boundaries,
the Town and Country Planning (Fees for Applications) (England) Regulations, the Town
and Country Planning (General Permitted Development) (England) Order 2015 as amended,
and the Party Wall etc. Act 1996.
