Party Wall Drawings & Notices in Westminster

Which Westminster postcodes does this party wall package service cover?

Every Westminster postcode district we draw in, the stock that dominates it and the authority that validates a party wall package there. Westminster fees below are the statutory England rates for 2026, not party wall package estimates.

How does a party wall package differ street by street across Westminster?

Roof pitch, wall build-up and plot depth change every few Westminster streets, and each one changes what a party wall package can achieve at that address.

• Maida Vale (W9) — a party wall package in Maida Vale starts from edwardian mansion blocks, victorian villas, and Maida Vale reads as Edwardian mansion blocks, canal-side. Victorian terraces here almost guarantee a party wall notice — the party structure notice runs one month in W9. Westminster City Council assesses Maida Vale party wall services against its own Maida Vale character guidance, and the location plan we draw for Maida Vale references Little Venice.
• Mayfair (W1J, W1K) — Georgian listed townhouses, luxury defines Mayfair, where georgian townhouses, listed buildings set what a party wall package can do. Georgian party walls here are shared brick across W1J. Any Mayfair party wall package is validated by Westminster City Council, with Berkeley Square the usual Mayfair reference point on the site plan.
• Belgravia (SW1X, SW1W) — white stucco Regency terraces defines Belgravia, where regency stucco terraces, listed buildings set what a party wall package can do. Victorian terraces here almost guarantee a party wall notice — the party structure notice runs one month across SW1X. Any Belgravia party wall package is validated by Westminster City Council, with Eaton Square the usual Belgravia reference point on the site plan.
• Marylebone (W1U, W1G, W1H) — a party wall package in Marylebone starts from georgian terraces, edwardian mansion blocks, and Marylebone reads as Georgian and Victorian terraces, mansion blocks. Georgian party walls here are shared brick in W1U. Westminster City Council assesses Marylebone party wall services against its own Marylebone character guidance, and the location plan we draw for Marylebone references Marylebone High Street.
• Pimlico (SW1V) — a party wall package in Pimlico starts from regency terraces, post-war estates, and Pimlico reads as Regency stucco terraces, grid plan. Post-war blocks here have shared structure in several directions in SW1V. Westminster City Council assesses Pimlico party wall services against its own Pimlico character guidance, and the location plan we draw for Pimlico references Tate Britain.
• Soho (W1D, W1F) — party wall package work in Soho means georgian terraces, mixed-use. Soho is Georgian fragments, mixed-use. Georgian party walls here are shared brick throughout W1D. Westminster City Council decides the Soho application, and Soho Square anchors the Soho location plan.
• Covent Garden (WC2E, WC2H) — a party wall package in Covent Garden starts from georgian terraces, conversions, and Covent Garden reads as Georgian piazza, listed buildings. Georgian party walls here are shared brick in WC2E. Westminster City Council assesses Covent Garden party wall services against its own Covent Garden character guidance, and the location plan we draw for Covent Garden references Royal Opera House.

What local planning policy applies to a party wall package 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 party wall package inside a Westminster conservation area loses permitted development, so the Westminster submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Covent Garden a party wall package is judged on the street elevation first.

Article 4 and your Westminster party wall package: Multiple Article 4 Directions — office-to-residential restrictions, HMO conversions, retail to residential in shopping zones. At a NW8 address that matters twice over, because Westminster City Council applies the direction unevenly across Westminster — we read the Westminster policies map for the exact NW8 address before quoting party wall services.

Westminster below-ground policy: Westminster basement policy restricts to single-storey, typically under 50% of rear garden footprint; lightwells and rooflights strictly controlled in conservation areas. Any party wall package in Westminster that goes below existing foundations triggers two months notice under section 6 of the Party Wall etc. Act 1996, and Westminster City Council will want the NW8 ground and groundwater position set out.

Westminster housing stock: 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. Read that before choosing a party wall package route in Westminster — construction, not postcode, sets what is achievable. Westminster City Council charges £548 for a householder application and has 8 weeks to determine it.

What happens if a Westminster property sits on a boundary?

• Kensington and Chelsea — the Kensington and Chelsea boundary runs against Westminster, so a party wall package a street from Westminster is decided by RBKC Planning instead. Kensington and Chelsea runs 38 conservation areas across SW1 and its neighbours, which is why party wall services priced for Westminster are re-checked against Kensington and Chelsea policy whenever the Westminster address sits on that edge.
• Wandsworth — the Wandsworth boundary runs against Westminster, so a party wall package a street from Westminster is decided by Wandsworth Council instead. Wandsworth runs 45 conservation areas across SW8 and its neighbours, which is why party wall services priced for Westminster are re-checked against Wandsworth policy whenever the Westminster address sits on that edge.
• Lambeth — the Lambeth boundary runs against Westminster, so a party wall package a street from Westminster is decided by Lambeth Council instead. Lambeth runs 64 conservation areas across SE1 and its neighbours, which is why party wall services priced for Westminster are re-checked against Lambeth policy whenever the Westminster address sits on that edge.
• City of London — the City of London boundary runs against Westminster, so a party wall package a street from Westminster is decided by City of London Corporation instead. City of London runs 27 conservation areas across EC1 and its neighbours, which is why party wall services priced for Westminster are re-checked against City of London policy whenever the Westminster address sits on that edge.

Sources for this Westminster party wall package 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.