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Property guide · Westminster

Georgian townhouse extensions in Westminster

Listed terraced townhouses with sash windows, multiple storeys, and tight internal layouts.

Quick facts

Property type
Georgian townhouse
Borough
Westminster
Planning authority
Westminster City Council
Article 4 in force
Yes
Conservation areas
56
Drawings from
£840

Georgian townhouse stock in Westminster responds best to extensions that respect the existing rhythm. For Victorian and Edwardian period property, side returns and rear infill are routine. For 1930s suburban, single-storey rear and loft conversions dominate. We design to the block, not the brochure.

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Which postcode districts around Westminster do we cover for Georgian townhouse project work?

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

PostcodeAreaDominant stockWhat it means for a Georgian townhouse project
W2Bayswater / PaddingtonVictorian stucco terracesW2 covers Bayswater / Paddington only; Westminster City Council handles the Georgian townhouse project, and Bayswater / Paddington case officers apply the W2 conservation-area map.
W9Maida ValeVictorian terraces, mansion blocksA Georgian townhouse project at an W9 address in Maida Vale is determined by Westminster City Council under its own Local Plan policies for Maida Vale.
WC2BCovent Garden / HolbornGrand Georgian and Regency terraces in Belgravia and Pimlico; Victorian and Edwardian mansion blocks; heritage-rich townhouses throughout; very high listed building densityCovent Garden / Holborn is split at WC2B. Either Westminster City Council or Camden Council can determine a Georgian townhouse project here, so the WC2B address is checked against both policies maps first.
WC2ECovent GardenGeorgian terraces, conversionsWC2E covers Covent Garden only; Westminster City Council handles the Georgian townhouse project, and Covent Garden case officers apply the WC2E conservation-area map.
WC2HCovent Garden / Leicester SquareGeorgian terraces, conversionsWC2H covers Covent Garden / Leicester Square only; Westminster City Council handles the Georgian townhouse project, and Covent Garden / Leicester Square case officers apply the WC2H conservation-area map.
WC2NCharing Cross / StrandGrand Georgian and Regency terraces in Belgravia and Pimlico; Victorian and Edwardian mansion blocks; heritage-rich townhouses throughout; very high listed building densityCharing Cross / Strand sits wholly inside WC2N, so Westminster City Council validates every Georgian townhouse project submitted from an WC2N address.
WC2RStrandGrand Georgian and Regency terraces in Belgravia and Pimlico; Victorian and Edwardian mansion blocks; heritage-rich townhouses throughout; very high listed building densityWC2R covers Strand only; Westminster City Council handles the Georgian townhouse project, and Strand case officers apply the WC2R conservation-area map.
NW1Camden Town / Regent's ParkVictorian terraces, mansion blocksCamden Town / Regent's Park is split at NW1. Either Camden Council or Westminster City Council can determine a Georgian townhouse project here, so the NW1 address is checked against both policies maps first.

How does a Georgian townhouse project 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 Georgian townhouse project can achieve at that address.

How do conservation areas and Article 4 affect a Georgian townhouse project in Westminster?

How designation changes a Westminster Georgian townhouse project: Westminster City Council maintains 56 conservation areas, including Mayfair, Belgravia, Marylebone. Inside any of them a Westminster Georgian townhouse project cannot rely on permitted development, and the route becomes a £258 householder application determined in 8 weeks rather than a £120 prior approval in 6 weeks. Soho sets the tone for Westminster casework.

Westminster and Article 4: Multiple Article 4 Directions — office-to-residential restrictions, HMO conversions, retail to residential in shopping zones. A Georgian townhouse 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 Georgian townhouse 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.

What Westminster is built from: 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. That mix decides the Georgian townhouse project route in Westminster more than the postcode does. Our fixed fee for Georgian townhouse projects in Westminster starts at £840, against £1,750 for the Complete package that carries a Westminster scheme through Westminster City Council planning and building regulations together.

What happens if a Westminster property sits on a boundary?

Sources for this Westminster Georgian townhouse 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.

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