Ashford, Surrey
Bungalow rear extension in Ashford
Thinking about a bungalow rear extension in Ashford? Single-storey rear extensions that keep everything on one level. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
Ashford sits in Surrey, with postcode districts including TW15, TW16 and TW18. For Ashford 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 Ashford?
A bungalow rear extension in Ashford is priced at £2,070–£3,360 per square metre including VAT as a guide, before kitchen fit-out and fees. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £25,000–£40,500 |
| 4 m wide × 6 m deep (24 m²) | £49,500–£80,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a bungalow rear extension in Ashford?
The planning route for a bungalow rear extension in Ashford is set by England's householder rules and your council.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres 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 Ashford like to extend?
Commuter semis and detached houses make up much of Ashford, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a bungalow rear extension in Ashford 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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Bungalow rear extensions near Ashford
We also build rear extensions for bungalows in nearby Stanwell (1.8 miles) and Staines (2.1 miles).
- Bungalow rear extension in Stanwell
- Bungalow rear extension in Staines
- Bungalow rear extension in Feltham
- Bungalow rear extension in Shepperton
- Bungalow rear extension in Sunbury-on-Thames
Other work in Ashford:
FAQ
Bungalow rear extension questions in Ashford
What postcode areas do you cover around Ashford?
Including TW15, TW16 and TW18, and the surrounding Surrey area.
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.
Is a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
Is the site visit in Ashford free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.