House Extensions · W13 West Ealing
Ealing applies standard suburban householder control across W13, with a conservation pocket around Drayton Green.
If your property sits elsewhere in the borough, the borough-wide page for house extensions in Ealing covers the same service across every ward.
House extensions in West Ealing are dominated by single-storey rear and side-return additions on W13's edwardian and inter-war bay-fronted semis and terraces, with double-storey and wrap-around schemes where the plot allows. Ealing Council weighs depth, height and neighbour daylight; many extensions across West Ealing, Drayton Green, Northfields fringe are Permitted Development, which we confirm with a Lawful Development Certificate before you build.
The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical phase, ideal for edwardian and inter-war bay-fronted semis and terraces typical of West Ealing.
Across West Ealing, Drayton Green, Northfields fringe in W13, the dominant property is edwardian and inter-war bay-fronted semis and terraces, with mansion blocks around west ealing and the drayton green streets. That stock shapes what house extension drawings looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Ealing Council judges each on design quality and neighbour impact. We survey the specific West Ealing property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the W13 streetscape.
Housing stock in W13: Edwardian and inter-war bay-fronted semis and terraces, with mansion blocks around West Ealing and the Drayton Green streets.
Within the district: West Ealing, Drayton Green, Northfields fringe.
Streets we know in W13: the Drayton Green and Cleveland Park roads, Northcroft Road and the Lammas Park terraces. Each road has its own building line, boundary treatment and precedent that Ealing Council weighs when assessing a house extension drawings scheme.
Conservation areas: Drayton Green, Lammas Park (adjoining). Inside these, most external work needs full planning and a Heritage Statement.
Getting around W13: West Ealing on the Elizabeth line and Northfields on the Piccadilly line.
Regeneration: West Ealing falls within or beside the West Ealing / Elizabeth line growth area, which shapes local planning policy and design expectations.
Property values: the quartiles here are wide — £475,000 at the bottom of the middle half, £965,000 at the top — which is what a district mixing flats with large houses looks like in the data. Source: HM Land Registry Price Paid Data
Borough character: Leafy outer-west London; Bedford Park conservation area has strict heritage controls; rest of borough generally permissive.
Measured existing survey, photographic record, Article 4 and conservation check specific to West Ealing before we quote.
2–3 design options at concept stage — alternative layouts, glazing, roof forms.
Site location plan, existing and proposed plans, elevations, sections, D&AS where required.
Part L thermal, Part B fire, Part M accessibility, structural strategy.
Steel beam, foundation, lintel design. Chartered engineer sign-off.
Party Wall notices where needed; Thames Water Build Over Agreement where within 3m of a public sewer.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.
Yes. The Edwardian and inter-war semis around Drayton Green and Cleveland Park suit rear and side extensions plus loft conversions, much of it within Permitted Development outside the conservation area, confirmed with a Lawful Development Certificate. We confirm the route and draw to Ealing's checklist.
West Ealing on the Elizabeth line has cut journey times to central London and Heathrow, lifting demand across W13. For a house project it improves the backdrop; your scheme is still governed by Permitted Development limits and Ealing householder policy, which we apply.
Usually yes — a hip-to-gable plus rear dormer on the semis, within the volume allowance and confirmed by a Lawful Development Certificate, provided you're not in the Drayton Green conservation area. We check the constraints for your road and draw it for Building Control.
Family-house extensions and lofts on the bay-fronted Edwardian and inter-war stock — side-returns, rear additions and hip-to-gable lofts. With houses around £750,000-£1m, the added space justifies a council-ready scheme; we handle planning and Building Regulations drawings together.
Ealing Council charges its own statutory application fee (currently £548 for a householder planning application, £610 for a full application). We quote the drawings as one fixed price and the free site survey covers every W13 address.
For a W13 project across West Ealing, Drayton Green, Northfields fringe, expect roughly 3–4 weeks from instruction to submission: week 1 the measured survey, weeks 2–3 the drawings and your revisions, then validation and the statutory determination by Ealing Council (8 weeks for a householder application). We carry the West Ealing application through every officer query to the decision.
West Ealing (W13) sits primarily in Ealing, so applications are decided by Ealing Council. Conservation areas within W13 include Drayton Green, Lammas Park (adjoining), where full planning and a Heritage Statement are required. We confirm the planning route for your exact address before quoting.
Almost always. Any structural work behind house extension drawings in West Ealing — new openings, steel beams, loft floors, foundations — needs Building Regulations approval covering structure (Part A), fire escape (Part B) and insulation (Part L), submitted to Ealing Council Building Control or an approved inspector. On W13's typically terraced and semi-detached stock, a Party Wall notice to adjoining neighbours is normally required before the steelwork. We coordinate both as part of the Complete package.
In value terms, yes. The bigger risk is an unapproved or non-compliant scheme — which is why council-ready drawings and a clean Building Control sign-off matter on W13 homes.
Neighbouring authorities set their own policies, and the boundary rarely matches the postcode. Full service listings for NW10, W3, W4, W5 and W7.
Pick a slot that suits you. No obligation and no sales pressure, just straight answers on your planning route.
Every W13 postcode district we draw in, the stock that dominates it and the authority that validates a house extension there. W13 fees below are the statutory England rates for 2026, not house extension estimates.
| Postcode | Area | Dominant stock | What it means for a house extension |
|---|---|---|---|
| W13 | West Ealing | Edwardian terraces | W13 covers West Ealing only; Ealing Council handles the house extension. |
| W3 | Acton | Victorian and Edwardian terraces | Adjoining district to W13, also inside Ealing for house extension purposes. |
| W5 | Ealing | Edwardian villas, Victorian terraces | Adjoining district to W13, also inside Ealing for house extension purposes. |
| W7 | Hanwell | Edwardian villas, 1930s semi-detached | Adjoining district to W13, also inside Ealing for house extension purposes. |
Roof pitch, wall build-up and plot depth change every few W13 streets, and each one changes what a house extension can achieve at that address.
Conservation areas covering W13 (West Ealing): Ealing Council runs 30, and Ealing Broadway, Pitshanger, Bedford Park are the ones W13 (West Ealing) owners meet most. A house extension inside a W13 (West Ealing) conservation area loses permitted development, so the W13 (West Ealing) submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Pitshanger a house extension is judged on the street elevation first.
W13 (West Ealing) and Article 4: Article 4 for HMOs in specific streets in Acton, Ealing and Southall. A house extension planned at a W13 address is checked against that direction first; Ealing Council publishes the W13 (West Ealing) extent, and the W13 line rarely follows the W13 (West Ealing) boundary you would expect.
What W13 (West Ealing) is built from: 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. That mix decides the house extension route in W13 (West Ealing) more than the postcode does, and it is what a Ealing Council case officer reads first. A householder application costs £548 paid to Ealing Council direct, with 8 weeks to a decision once validated.
Sources for this W13 house extension 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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