House Extensions in Ealing and Acton: Permitted Development, Planning and Build Tips
Ealing, Acton, Chiswick and neighbouring parts of west London are full of Victorian and Edwardian terraces and inter-war semis, many of which are ideal for extension. With the Elizabeth line at Ealing Broadway and Acton Main Line, demand for homes here continues to grow.
Berati Construction’s office is in NW10, so west London is home turf. Here is a practical guide to extending in this part of the capital.
What permitted development allows
Many houses can be extended without a full planning application under permitted development rights, subject to limits. For example, a single-storey rear extension on a terraced or semi-detached house can normally extend up to three metres, or four metres on a detached house, with height and boundary restrictions. A larger home extension scheme allows greater depth through a prior approval process that includes neighbour consultation.
Rights differ for flats and maisonettes, and they are restricted in conservation areas for some types of work.
Article 4 directions and conservation areas
Parts of Ealing and Acton are covered by conservation areas, including those with distinctive Victorian and Edwardian streets, and some have Article 4 directions that withdraw specific permitted development rights, such as changes to front elevations or roof alterations. Always confirm with the council or a planning consultant before you proceed.
Popular extension types
Rear extensions to create open-plan kitchen and dining space
Side-return extensions on Victorian terraces
Wraparound extensions that combine side and rear
Loft conversions over the extension, creating a full-height addition
Garden rooms and outbuildings
Build considerations
Extensions need foundations that suit the soil, steel beams where walls are opened, careful drainage and good thermal performance. Shared drains and party walls often come into play on terraced streets; read our guide to party wall agreements to understand notices and timescales.
Our article on rear house extensions in Willesden covers further planning detail that applies across the neighbouring boroughs.
Extension or loft conversion?
Some owners prefer to go up instead of out. The right choice depends on budget, planning and the house itself. See our loft conversion cost guide and the extension versus loft comparison for further detail.
Frequently asked questions
Do I need planning permission for a rear extension in Ealing?
Not always. Permitted development may apply, but conservation areas and Article 4 directions can change that.
How long does an extension take?
Typically some months from start on site, depending on size and complexity. Your contractor should provide a programme.
Do you work in Acton and Chiswick?
Yes. West London is our home area, and we regularly work across the neighbouring boroughs.
Do I need a party wall agreement?
If you build on or near a shared boundary or wall, probably yes. Your surveyor can advise.
Talk to Berati Construction
Thinking about extending your west London home? Berati Construction Ltd has more than 30 years' experience delivering new builds, conversions and refurbishments as a single-point main contractor. Call us on 020 3488 6466 or visit beraticonstruction.co.uk to discuss your project. Our office is at 12 Cecil Road, London NW10 8UJ.
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