Kitchen Extensions Kilburn

A kitchen extension in Kilburn is built onto one of two kinds of building, a Victorian terrace or a ground floor flat with a garden, and the rules for each are very different. Terraced houses are 8% of homes here and flats 92%. A house can use the side return or the rear under householder rules, while a flat has no householder permitted development rights at all, so every flat extension starts with a planning application and, under most leases, the freeholder's consent. We build the shell, the steel and the kitchen as one programme.

In Kilburn, a rear kitchen extension of about 30 square metres typically costs £45,000 to £97,500 excluding VAT, or £60,000 to £100,000 for a side return (indicative London ranges, Resi, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Kilburn: the structural engineer we appoint designs the foundations and steel, we build the room and fit the kitchen, and a registered electrician certifies the electrics.

Which kitchen extension suits a Kilburn house or flat

The shape of your Kilburn extension follows the building you own. 8% of homes here are terraced houses and 1% are semi-detached or detached, so the typical house project is a terrace. There the narrow passage beside the back addition can be infilled to widen the kitchen, or the rear wall pushed out across the full width. On a terrace the neighbour's wall is on the boundary, so the drawings, the party wall paperwork and the steel design all have to be settled before we set out the footings.

A flat is a different case. 92% of homes in Kilburn are flats, and a ground floor flat with its own garden can extend, but never under householder permitted development. That means a full planning application, the freeholder's licence under the lease and, where the flat above is affected, an agreed plan with its occupiers for access and noise. We price and programme a flat extension only once those consents exist, because the approved drawings fix the depth, the roof and the glazing we build to.

Housing in Kilburn

The Council Tax list puts Kilburn at about 17,940 homes, 92% flats against 8% houses; 48% went up before 1919, 2% between the wars and 49% after 1945. Most homes here are flats, and only a ground floor flat in Kilburn with its own garden can extend its kitchen.

Brent's depth limits for a rear kitchen extension in Kilburn

Brent's Residential Extensions and Alterations SPD allows a single storey rear extension to an attached home of up to 6 metres from the original rear wall. It is a planning guideline, so the application still has to show that light and outlook next door are acceptable. Homes east of Kilburn High Road are in Camden, where Camden's own guidance applies instead. Under national permitted development the limit without an application is three metres for any house other than a detached one, and four metres for a detached house.

With prior approval, and outside Article 2(3) designated land, the permitted development limit rises to six metres for an attached house and eight for a detached one. Any single storey rear extension under permitted development must stay within four metres in height, which matters when a Kilburn kitchen wants a raised roof or a lantern. We build to whichever route your designer has taken, and the drawing sets our setting out and roof levels.

Conservation areas and Article 4 around Kilburn

If your Kilburn house sits in a conservation area, check the designation before anyone draws a side extension. The Kilburn Conservation Area was originally designated on 11 January 1993 and is one of the surviving parts of the Brondesbury Estate, and the North Kilburn Conservation Area was designated in March 1994 with its own article 4 direction and design guide. On Article 2(3) designated land, such as a conservation area, all side extensions require householder planning permission.

All of Brent's residential conservation areas are covered by article 4 directions, and these can bring works such as replacing roof tiles, removing chimneys and erecting sheds or outbuildings in rear gardens under planning control. On a kitchen extension that can catch a new garden store built to replace the one the footings displace, or a chimney stack taken down on the back addition. We follow the approved drawings and the design guide on brick, roof covering and glazing, and flag anything on site the consent does not cover before it is touched.

Sewers, steel and the kitchen fit-out in one Kilburn programme

Drainage is worth checking first on a Kilburn terrace, because a shared drain can run across the back of a row of houses. Brent requires a full plans application for an extension built over, or within, three metres of a public sewer, so a building notice is not an option on those plots, and the water company's build over agreement is needed as well. A drainage survey before the design is fixed tells the designer whether the extension can bridge the pipe or whether it has to be diverted, and that choice changes the foundation detail and the programme.

Opening the back of the house needs steel sized by the structural engineer we appoint, with the old rear wall propped while the beam goes in. Once the shell is watertight, the roof lights, sliding doors and the kitchen follow in one sequence, so the plumbing and electrics are run to the final layout and not moved twice. A kitchen extension is usually too small to be liable for CIL, but where a larger scheme is, Brent's relief for an extension to your main home must be applied for before commencement.

• Building control inspections from footings to completion
• Boiler relocation and flue changes on the enclosed rear wall
• Kitchen-diner layouts planned before the foundations

VOA Council Tax stock of properties, March 2025, for Kilburn West, Kilburn Park, Kilburn Grange and Kilburn East. Counts rounded by the VOA.

Alongside kitchen extensions in Kilburn, the pages that usually help next are kitchen renovation in Kilburn, kitchen extensions across Brent, a wraparound kitchen-diner, the Party Wall Act on a boundary build, kitchen extensions anywhere in London and Renovating a Victorian Terrace.

Why Kilburn Homeowners Choose GS Renovation

We run the whole kitchen extension from the approved drawings: groundworks, drainage, the steel the structural engineer we appoint specifies, the roof, the glazing and then the kitchen itself. You get one programme and one team, so the shell and the fit-out are sequenced together and services are placed once. Before we start, we ask to see your consent, the building control route and any freeholder licence, and we set our start date around them.

• Cooker extract taken outside through the new roof or flank wall, not recirculated
• Straight advice on what is and is not worth spending money on
• Kitchen layout agreed before the foundations, so the services land in the right place

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.