Basement extension under garden in Earl's Court

Which postcode districts around Earl's Court do we cover for house extensions work?

Every Earl's Court postcode district we draw in, the stock that dominates it and the authority that validates a house extensions there. Earl's Court fees below are the statutory England rates for 2026, not house extensions estimates.

Which Earl's Court neighbourhoods suit a house extensions best?

Roof pitch, wall build-up and plot depth change every few Earl's Court streets, and each one changes what a house extensions can achieve at that address.

• Earl's Court (SW5) — a house extensions in Earl's Court starts from stucco terraces, edwardian mansion blocks, and Earl's Court reads as Victorian stucco terraces, mansion blocks. Edwardian plots here are wider in SW5. RBKC Planning assesses Earl's Court house extensions against its own Earl's Court character guidance, and the location plan we draw for Earl's Court references Earl's Court station.
• Near Earl's Court: Notting Hill (W11) — house extensions work in Notting Hill means victorian stucco terraces. Notting Hill is stucco terraces, painted facades. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage throughout W11. RBKC Planning decides the Notting Hill application, and Portobello Road anchors the Notting Hill location plan.
• Near Earl's Court: Holland Park (W11, W14) — house extensions work in Holland Park means victorian and edwardian villas. Holland Park is Victorian villas around the park. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage throughout W11. RBKC Planning decides the Holland Park application, and Holland Park anchors the Holland Park location plan.
• Near Earl's Court: South Kensington (SW7) — house extensions work in South Kensington means stucco terraces, mansion blocks, listed buildings. South Kensington is Victorian and Edwardian stucco terraces. Ground-floor mansion-block flats can extend into a rear light well throughout SW7. RBKC Planning decides the South Kensington application, and V&A anchors the South Kensington location plan.
• Near Earl's Court: Knightsbridge (SW1X, SW7) — Regency and Victorian terraces, luxury defines Knightsbridge, where regency and victorian terraces, mansion blocks set what a house extensions can do. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage across SW1X. Any Knightsbridge house extensions is validated by RBKC Planning, with Harrods the usual Knightsbridge reference point on the site plan.
• Near Earl's Court: North Kensington (W10) — a house extensions in North Kensington starts from victorian terraces, post-war estates, and North Kensington reads as Victorian terraces, post-war estates. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage in W10. RBKC Planning assesses North Kensington house extensions against its own North Kensington character guidance, and the location plan we draw for North Kensington references Golborne Road.
• Near Earl's Court: Brompton (SW3) — a house extensions in Brompton starts from stucco terraces, edwardian mansion blocks, and Brompton reads as Victorian stucco terraces, mansion blocks. Edwardian plots here are wider in SW3. RBKC Planning assesses Brompton house extensions against its own Brompton character guidance, and the location plan we draw for Brompton references Brompton Cross.

Does Earl's Court planning policy restrict a house extensions?

Conservation areas covering Earl's Court: RBKC Planning runs 38, and Chelsea, Notting Hill, Holland Park are the ones Earl's Court owners meet most. A house extensions inside a Earl's Court conservation area loses permitted development, so the Earl's Court submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Holland Park a house extensions is judged on the street elevation first.

Earl's Court and Article 4: Article 4 Directions covering HMOs, office-to-residential, and basement developments — RBKC has some of the strictest basement policies in London. A house extensions planned at a SW5 address is checked against that direction first; RBKC Planning publishes the Earl's Court extent, and the SW5 line rarely follows the Earl's Court boundary you would expect.

Earl's Court below-ground policy: RBKC's basement policy (post-2015) limits to single-storey under 50% of garden area; double-storey basements effectively prohibited in residential streets. Any house extensions in Earl's Court that goes below existing foundations triggers two months notice under section 6 of the Party Wall etc. Act 1996, and RBKC Planning will want the SW5 ground and groundwater position set out.

Earl's Court housing stock: Grand white stucco Regency and Victorian terraces; red-brick Queen Anne mansions in Kensington; Edwardian mansion blocks; almost no post-war housing stock. Internationally wealthy residents; extensive listed building coverage; heritage and streetscape prioritised in every decision. Read that before choosing a house extensions route in Earl's Court — construction, not postcode, sets what is achievable.

Who decides a house extensions on the edge of Earl's Court?

• Westminster — cross the Earl's Court boundary and Westminster City Council takes the house extensions instead, applying 56 conservation areas of its own around SW1. We re-price house extensions at the Earl's Court edge because Westminster policy and Kensington and Chelsea policy rarely align on house extensions depth.
• Hammersmith and Fulham — adjoining Earl's Court, with 45 conservation areas centred on W6. A house extensions on the far side of the Earl's Court line is determined by Hammersmith & Fulham Council, so the Earl's Court quote for house extensions is checked against Hammersmith and Fulham guidance before it is issued.
• Brent — adjoining Earl's Court, with 22 conservation areas centred on NW2. A house extensions on the far side of the Earl's Court line is determined by Brent Council, so the Earl's Court quote for house extensions is checked against Brent guidance before it is issued.

Sources for this Earl's Court house extensions 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.