Extending your home in Yeovil
From a small utility to a two-storey addition, we take on house extensions throughout Yeovil, starting with a free visit and a planning check.
- Postcode districtsBA20, BA21, BA22
- Price regionSouth West England (×1.02)
- Planning rulesEngland
- Site visitFree, no obligation
Yeovil and surrounding towns
We cover Yeovil and the postcode districts BA20, BA21, BA22. We also work in nearby Bridgwater (21 miles), Taunton (21 miles), Frome (24 miles), Burnham-on-Sea (26 miles), Weston-super-Mare (32 miles). Bridport, in Dorset, is roughly 15 miles from Yeovil and also on our list.
Guide prices for Yeovil
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) |
|---|---|---|
| Double-storey extensions | 32 m² | £58,500 – £77,000 |
| Side return extensions | 11 m² | £26,500 – £34,000 |
| Conservatory replacement extensions | 14 m² | £30,500 – £39,500 |
| Wraparound extensions | 25 m² | £58,500 – £74,000 |
| Extensions over a garage | 12 m² | £25,500 – £33,500 |
Choosing the right extension in Yeovil
South West homes range from terraced streets in the cities to stone cottages and bungalows in the countryside, and conservation areas are common in historic centres.
For many houses here, single-storey rear extensions, pitched roof extensions or orangery extensions gives the most useful space for the budget.
Planning and building control in Yeovil
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).
All extension types we build in Yeovil
- Kitchen extensions · from £27,500
- Utility and boot room extensions · from £14,000
- Home office extensions · from £16,000
- Wraparound extensions · from £36,500
- Building regulations for extensions · from £900
- Extension plans and drawings · from £1,200
- Bedroom extensions · from £26,500
- Planning permission for extensions · from £350
- Bungalow extensions · from £26,500
- Flat roof extensions · from £21,000
- Annexe extensions · from £56,000
- Porch extensions · from £4,050
- Pitched roof extensions · from £22,500
- Side return extensions · from £18,000
- Timber frame extensions · from £21,000
- Conservatory replacement extensions · from £20,000
- Extensions over a garage · from £24,000
- Single-storey rear extensions · from £21,000
- Glass box extensions · from £30,500
- Orangery extensions · from £30,500
- Side extensions · from £22,000
- Double-storey extensions · from £38,500
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
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 Yeovil
How much does an extension cost in Yeovil?
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.
How long does an extension take in Yeovil?
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 Yeovil, and the guide-price tool gives a range for your own size and finish in about a minute.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Book a free site visit in Yeovil
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.