Swanscombe, Kent
Bungalow rear extension in Swanscombe
Bungalow rear extension in Swanscombe: single-storey rear extensions that keep everything on one level. We measure the house, show you what the rules allow, price it in writing and build it.
We cover Swanscombe (DA10) as part of our Kent work. For Swanscombe 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 Swanscombe?
In Swanscombe, our guide for a bungalow rear extension is £2,070–£3,360 per square metre including VAT for a standard specification. 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 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a bungalow rear extension in Swanscombe?
Planning for a bungalow rear extension in Swanscombe follows the English householder rules.
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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Swanscombe like to extend?
Commuter semis and detached houses make up much of Swanscombe, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a bungalow rear extension in Swanscombe comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Bungalow rear extensions near Swanscombe
We also build rear extensions for bungalows in nearby Grays (2.1 miles) and Tilbury (2.3 miles).
- Bungalow rear extension in Grays
- Bungalow rear extension in Tilbury
- Bungalow rear extension in Gravesend
- Bungalow rear extension in Chafford Hundred
- Bungalow rear extension in Longfield
Other work in Swanscombe:
FAQ
Bungalow rear extension questions in Swanscombe
Is the site visit in Swanscombe free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How much does a bungalow rear extension cost in Swanscombe?
As a guide, £2,070–£3,360 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £25,000–£40,500 at that rate. Your written price follows the survey.
Can I extend the loft as well?
Sometimes, but that is a different project; a rear extension keeps everything on one level.
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.
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.
Can you match the brick or stone on my Swanscombe house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.