Kilburn, Greater London
Bungalow rear extension in Kilburn
For homes in Kilburn, a bungalow rear extension is often the simplest way to gain space without moving. Single-storey rear extensions that keep everything on one level. We take it from survey to completion certificate.
We cover Kilburn (NW2, NW3 and NW6) as part of our Greater London work. For Kilburn bungalows we design the roof first, because the low eaves decide the height of the new room.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a bungalow rear extension cost in Kilburn?
A bungalow rear extension in Kilburn is priced at £2,400–£3,900 per square metre including VAT as a guide, before kitchen fit-out and fees. London prices sit at the top of our range because of labour rates, access through the house, parking suspensions and skip licences.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £29,000–£47,000 |
| 4 m wide × 6 m deep (24 m²) | £57,500–£93,500 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a bungalow rear extension in Kilburn?
Here is how the rules in England apply to a bungalow rear extension in Kilburn.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Kilburn like to extend?
Period terraces in Kilburn sit alongside flats, and the difference matters: houses usually keep permitted development rights, while flats and maisonettes need planning permission for any rear extension.
How a bungalow rear extension in Kilburn comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Bungalow rear extensions near Kilburn
From Kilburn, the nearest places we also cover are Belsize Park (0.9 miles) and Cricklewood (1.1 miles).
- Bungalow rear extension in Belsize Park
- Bungalow rear extension in Cricklewood
- Bungalow rear extension in Highgate
- Bungalow rear extension in Golders Green
- Bungalow rear extension in Maida Hill
Other work in Kilburn:
FAQ
Bungalow rear extension questions in Kilburn
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
How deep can I extend?
The same limits as a house: 3 or 4 metres in England, more with prior approval.
Do you handle building control in Kilburn?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is the site visit in Kilburn free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can you match the brick or stone on my Kilburn house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.