Two-storey rear extension in West Ealing

Where in West Ealing does a house extensions actually get determined?

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

What changes about a house extensions in each part of West Ealing?

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

• West Ealing (W13) — house extensions work in West Ealing means edwardian terraces. West Ealing is Edwardian terraces. Edwardian plots here are wider throughout W13. Ealing Council decides the West Ealing application, and West Ealing station anchors the West Ealing location plan.
• Near West Ealing: Hanwell (W7) — house extensions work in Hanwell means edwardian villas, 1930s semi-detached. Hanwell is Edwardian villas, 1930s semi-detached. Edwardian plots here are wider throughout W7. Ealing Council decides the Hanwell application, and Hanwell viaduct anchors the Hanwell location plan.
• Near West Ealing: Southall (UB1, UB2) — house extensions work in Southall means edwardian terraces, post-war flats. Southall is Edwardian terraces, post-war estates. Edwardian plots here are wider throughout UB1. Ealing Council decides the Southall application, and Southall Broadway anchors the Southall location plan.
• Near West Ealing: Greenford (UB6) — house extensions work in Greenford means 1930s semi-detached. Greenford is 1930s semi-detached. 1930s semis here have the deepest rear gardens in the area throughout UB6. Ealing Council decides the Greenford application, and Greenford station anchors the Greenford location plan.
• Near West Ealing: Northolt (UB5) — house extensions work in Northolt means 1930s semi-detached, post-war estates. Northolt is 1930s semi-detached, post-war estates. 1930s semis here have the deepest rear gardens in the area throughout UB5. Ealing Council decides the Northolt application, and Northolt Tube anchors the Northolt location plan.
• Near West Ealing: Bedford Park (W4) — a house extensions in Bedford Park starts from arts & crafts villas (listed), and Bedford Park reads as Arts & Crafts garden suburb, conservation. 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 W4. Ealing Council assesses Bedford Park house extensions against its own Bedford Park character guidance, and the location plan we draw for Bedford Park references Bedford Park Estate.
• Near West Ealing: Pitshanger (W5) — house extensions work in Pitshanger means edwardian villas. Pitshanger is Edwardian conservation area. Edwardian plots here are wider throughout W5. Ealing Council decides the Pitshanger application, and Pitshanger Lane anchors the Pitshanger location plan.

How do conservation areas and Article 4 affect a house extensions in West Ealing?

West Ealing conservation designations: there are 30 across Ealing Council, Acton Green, Hanwell, Ealing Broadway among them. Designation costs a West Ealing owner the permitted-development route: a house extensions then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Hanwell is the West Ealing designation that most often changes a house extensions design.

What Article 4 removes near West Ealing: Article 4 for HMOs in specific streets in Acton, Ealing and Southall. Before pricing a house extensions we check whether the W13 address is inside the mapped area, because Ealing Council draws the West Ealing boundary street by street rather than across the whole of West Ealing.

West Ealing housing stock: Victorian and Edwardian villas in Ealing central; 1930s semi-detached in Northolt and Hanwell; mansion blocks along main roads; Bedford Park is a listed Arts & Crafts garden suburb. Leafy outer-west London; Bedford Park conservation area has strict heritage controls; rest of borough generally permissive. Read that before choosing a house extensions route in West Ealing — construction, not postcode, sets what is achievable.

What happens if a West Ealing property sits on a boundary?

• Hounslow — the Hounslow boundary runs against Ealing, so a house extensions a street from West Ealing is decided by Hounslow Council instead. Hounslow runs 30 conservation areas across W3 and its neighbours, which is why house extensions priced for West Ealing are re-checked against Hounslow policy whenever the West Ealing address sits on that edge.
• Hillingdon — adjoining West Ealing, with 29 conservation areas centred on HA4. A house extensions on the far side of the West Ealing line is determined by Hillingdon Council, so the West Ealing quote for house extensions is checked against Hillingdon guidance before it is issued.
• Brent — the Brent boundary runs against Ealing, so a house extensions a street from West Ealing is decided by Brent Council instead. Brent runs 22 conservation areas across NW2 and its neighbours, which is why house extensions priced for West Ealing are re-checked against Brent policy whenever the West Ealing address sits on that edge.
• Hammersmith and Fulham — cross the West Ealing boundary and Hammersmith & Fulham Council takes the house extensions instead, applying 45 conservation areas of its own around W6. We re-price house extensions at the West Ealing edge because Hammersmith and Fulham policy and Ealing policy rarely align on house extensions depth.

Sources for this West Ealing 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.