Kitchen Extensions in West London

West London's terraces were built with a side return: the narrow strip of yard beside the rear addition that Victorian planning left behind. Claiming it is the classic kitchen extension in these postcodes, because it widens the whole back of the house rather than pushing it deeper into the garden, and it turns a dark galley kitchen into the room the household actually lives in. MVV designs and builds this work as one team, from the first survey to the finished room, and our own office is on Turnham Green Terrace in Chiswick, in the middle of the housing stock this guide is about.

Three shapes cover almost every West London kitchen extension.

• The side return infill widens the kitchen into the strip beside the rear addition. It gains less floor area than the plans suggest and more usefulness than the floor area suggests, because every gained metre is in exactly the right place.
• The rear extension pushes the back wall into the garden, suits houses without a usable side return, and carries the open plan kitchen and dining room most people are actually after.
• The wrap around combines the two in an L, the largest and most transformative of the three, and the one that asks the most of the planning context and the budget.

Glazing decides how all three feel: rooflights over the side return and generous rear openings are what make the new room bright instead of merely bigger.

On typical London jobs priced on our estimator in October 2026, all ex VAT: a single storey extension of about 20 m² of new floor, flat roofed with no rooflights, plus making good the room it joins, came to around £57,000, which is roughly £2,900 per square metre of new floor, and £2,650 to £2,900 per square metre of new floor is a realistic inner London range for new above ground space at a standard specification. Our minimum for a complete extension project, once finishes and fittings are included, is around £85,000. The kitchen itself is its own decision on top of the £57,000, which leaves out kitchen units, worktops and appliances and prices windows, doors, sanitaryware and tiles for fitting only, with the products supplied by you. For an existing kitchen, the builder's work alone to refit a 42 m² kitchen diner, with no units, worktops or appliances, came to around £23,000. A two storey side return, adding a kitchen extension with a bedroom and shower room above, came to around £128,000. These figures are indicative; the instant estimator prices your own project to your postcode in minutes.

Plenty of single storey rear extensions proceed under permitted development, within the current limits on depth and height, and larger single storey schemes can use the neighbour consultation route. West London complicates this pleasantly: conservation areas cover much of Notting Hill, Holland Park, Chiswick and their neighbours, and side return infills sit close to boundaries and to the neighbours' light. So the honest sequence is planning position first, design second. A scheme drawn to the wrong assumptions costs weeks; checking first costs a conversation. MVV prepares the drawings and manages the application or the permitted development route as part of the design and build service.

MVV builds across these postcodes: a loft conversion with an added storey and full refurbishment in Ladbroke Grove, W10, a residential loft conversion in Chiswick adding a bedroom, bathroom and study, and a two storey ex bank on Kensington High Street converted into a working restaurant, mosaic floor restored and a full commercial kitchen installed. Different briefs, same discipline: one team, one survey to start, and a finished room the household uses every day.