Wantage house extensions
Planning an extension in Wantage? Compare extension types, see guide prices adjusted for Wantage and book a free site visit.
- Postcode districtsOX12
- Price regionSouth East England (×1.12)
- Planning rulesEngland
- Site visitFree, no obligation
Planning rules in Wantage
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 extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.
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).
What extensions cost in Wantage
Prices on this page use our South East England factor of ×1.12, 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) |
|---|---|---|
| Side return extensions | 11 m² | £29,500 – £37,000 |
| Conservatory replacement extensions | 14 m² | £33,500 – £43,500 |
| Orangery extensions | 16 m² | £50,000 – £63,000 |
| Extensions over a garage | 12 m² | £28,000 – £36,500 |
| Double-storey extensions | 32 m² | £64,500 – £84,500 |
| Single-storey rear extensions | 20 m² | £45,500 – £58,500 |
| Kitchen extensions | 20 m² | £47,000 – £59,500 |
Where we work near Wantage
Across OX12, we can visit, measure and advise. Nearby, we also take on projects in Didcot (8 miles), Abingdon (8 miles), Oxford (13 miles), Witney (13 miles), Carterton (14 miles). Newbury, in Berkshire, is roughly 14 miles from Wantage and also on our list.
Choosing the right extension in Wantage
Homes across the South East range from Victorian terraces in the older town centres to large detached houses on the edges, so the right extension type varies street by street.
Start by comparing orangery extensions, wraparound extensions and double-storey extensions: between them they cover most of the layouts we see requested for houses like these.
Choose an extension type
- Timber frame extensions · from £23,500
- Planning permission for extensions · from £350
- Porch extensions · from £4,450
- Pitched roof extensions · from £24,500
- Glass box extensions · from £33,500
- Annexe extensions · from £61,500
- Side return extensions · from £20,000
- Bungalow extensions · from £29,000
- Side extensions · from £24,500
- Flat roof extensions · from £23,500
- Single-storey rear extensions · from £23,500
- Extension plans and drawings · from £1,300
- Wraparound extensions · from £40,000
- Utility and boot room extensions · from £15,500
- Building regulations for extensions · from £1,000
- Extensions over a garage · from £26,500
- Home office extensions · from £17,500
- Bedroom extensions · from £29,000
- Orangery extensions · from £33,500
- Double-storey extensions · from £42,500
- Conservatory replacement extensions · from £22,000
- Kitchen extensions · from £30,000
Free site visit
We visit your Wantage home, measure up, talk through what you want and check the planning position.
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
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Wantage
How much does an extension cost in Wantage?
Using our South East England factor (×1.12), a standard-spec single-storey extension of 20 m² is a guide £45,500 to £58,500 including VAT, and a 32 m² two-storey extension £64,500 to £84,500. Your written price follows the survey.
How long does an extension take in Wantage?
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 Wantage, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you cover all of Wantage?
Yes, including the surrounding parts of Oxfordshire. Site visits are free and there is no obligation.
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 Wantage
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.