House extensions in Wimborne Minster
More space without moving: we plan and build extensions across Wimborne Minster, with one team for the drawings, the council and the build.
- Postcode districtsBH21
- Price regionSouth West England (×1.02)
- Planning rulesEngland
- Site visitFree, no obligation

Wimborne Minster extension prices at a glance
Every figure below is a guide for Wimborne Minster, adjusted for South West England build costs (×1.02) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Side return extensions | 11 m² | £26,500 – £34,000 |
| Single-storey rear extensions | 20 m² | £41,500 – £53,500 |
| Kitchen extensions | 20 m² | £42,500 – £54,500 |
| Double-storey extensions | 32 m² | £58,500 – £77,000 |
| Wraparound extensions | 25 m² | £58,500 – £74,000 |
| Extensions over a garage | 12 m² | £25,500 – £33,500 |
Areas we cover around Wimborne Minster
Postcode districts we cover around Wimborne Minster include BH21. We also work in nearby Ferndown (4 miles), Poole (7 miles), Bournemouth (8 miles), Christchurch (10 miles), Swanage (14 miles). For homes towards Hampshire, New Milton is around 14 miles away.
What works best for Wimborne Minster houses?
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.
Planning and building control in Wimborne Minster
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).
Extension types and starting prices
- Side extensions · from £22,000
- Orangery extensions · from £30,500
- Utility and boot room extensions · from £14,000
- Home office extensions · from £16,000
- Pitched roof extensions · from £22,500
- Bungalow extensions · from £26,500
- Planning permission for extensions · from £350
- Extensions over a garage · from £24,000
- Glass box extensions · from £30,500
- Single-storey rear extensions · from £21,000
- Bedroom extensions · from £26,500
- Double-storey extensions · from £38,500
- Extension plans and drawings · from £1,200
- Porch extensions · from £4,050
- Building regulations for extensions · from £900
- Conservatory replacement extensions · from £20,000
- Kitchen extensions · from £27,500
- Side return extensions · from £18,000
- Flat roof extensions · from £21,000
- Wraparound extensions · from £36,500
- Annexe extensions · from £56,000
- Timber frame extensions · from £21,000
Free site visit
We visit your Wimborne Minster home, measure up, talk through what you want and check the planning position.
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
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Wimborne Minster
How much does an extension cost in Wimborne Minster?
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Wimborne Minster, 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.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Do you cover all of Wimborne Minster?
Yes, including the surrounding parts of Dorset. Site visits are free and there is no obligation.
Book a free site visit in Wimborne Minster
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.