Exmouth house extensions
Planning an extension in Exmouth? Compare extension types, see guide prices adjusted for Exmouth and book a free site visit.
- Postcode districtsEX8
- Price regionSouth West England (×1.02)
- Planning rulesEngland
- Site visitFree, no obligation
Choosing the right extension in Exmouth
In the South West, local stone, render and brick vary from town to town, so matching materials is a big part of designing an extension that looks right.
Start by comparing pitched roof extensions, orangery extensions and single-storey rear extensions: between them they cover most of the layouts we see requested for houses like these.
Guide prices for Exmouth
Prices on this page use our South West England factor of ×1.02, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Extensions over a garage | 12 m² | £25,500 – £33,500 |
| Side return extensions | 11 m² | £26,500 – £34,000 |
| Single-storey rear extensions | 20 m² | £41,500 – £53,500 |
| Double-storey extensions | 32 m² | £58,500 – £77,000 |
| Orangery extensions | 16 m² | £45,500 – £57,500 |
| Wraparound extensions | 25 m² | £58,500 – £74,000 |
| Conservatory replacement extensions | 14 m² | £30,500 – £39,500 |
Planning rules in Exmouth
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
Areas we cover around Exmouth
Site visits are available across Exmouth (EX8). We also work in nearby Exeter (9 miles), Newton Abbot (11 miles), Torquay (12 miles), Paignton (15 miles), Tiverton (20 miles). Bridport, in Dorset, is roughly 29 miles from Exmouth and also on our list.
All extension types we build in Exmouth
- Wraparound extensions · from £36,500
- Double-storey extensions · from £38,500
- Porch extensions · from £4,050
- Extensions over a garage · from £24,000
- Extension plans and drawings · from £1,200
- Side return extensions · from £18,000
- Building regulations for extensions · from £900
- Bungalow extensions · from £26,500
- Planning permission for extensions · from £350
- Single-storey rear extensions · from £21,000
- Pitched roof extensions · from £22,500
- Orangery extensions · from £30,500
- Bedroom extensions · from £26,500
- Annexe extensions · from £56,000
- Home office extensions · from £16,000
- Side extensions · from £22,000
- Timber frame extensions · from £21,000
- Conservatory replacement extensions · from £20,000
- Utility and boot room extensions · from £14,000
- Glass box extensions · from £30,500
- Kitchen extensions · from £27,500
- Flat roof extensions · from £21,000
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Exmouth
How much does an extension cost in Exmouth?
Using our South West England factor (×1.02), a standard-spec single-storey extension of 20 m² is a guide £41,500 to £53,500 including VAT, and a 32 m² two-storey extension £58,500 to £77,000. Your written price follows the survey.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
How long does an extension take in Exmouth?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Exmouth, and the guide-price tool gives a range for your own size and finish in about a minute.
Do I need planning permission for an extension in Exmouth?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Book a free site visit in Exmouth
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.