Extending your home in Clevedon
Looking to extend your home in Clevedon? Start here: extension types, guide prices for Clevedon, the planning rules that apply and how a project runs.
- Postcode districtsBS21
- Price regionSouth West England (×1.02)
- Planning rulesEngland
- Site visitFree, no obligation
Where we work near Clevedon
Postcode districts we cover around Clevedon include BS21. Neighbouring towns we cover include Nailsea (4 miles), Portishead (5 miles), Weston-super-Mare (8 miles), Burnham-on-Sea (15 miles), Keynsham (16 miles). For homes towards Gloucestershire, Kingswood is around 15 miles away.
Planning and building control in Clevedon
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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Popular extension prices in Clevedon
We publish guide prices so you can budget before anyone visits. For Clevedon they are adjusted by ×1.02, the factor we use across South West England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Kitchen extensions | 20 m² | £42,500 – £54,500 |
| 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 |
| Conservatory replacement extensions | 14 m² | £30,500 – £39,500 |
| Side return extensions | 11 m² | £26,500 – £34,000 |
Choosing the right extension in Clevedon
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.
The types we would usually look at first for a home in Clevedon are pitched roof extensions, annexe extensions and single-storey rear extensions, depending on the garden and how the house is laid out.
Extension types and starting prices
- Bungalow extensions · from £26,500
- Single-storey rear extensions · from £21,000
- Side extensions · from £22,000
- Home office extensions · from £16,000
- Pitched roof extensions · from £22,500
- Building regulations for extensions · from £900
- Side return extensions · from £18,000
- Annexe extensions · from £56,000
- Conservatory replacement extensions · from £20,000
- Extensions over a garage · from £24,000
- Utility and boot room extensions · from £14,000
- Extension plans and drawings · from £1,200
- Flat roof extensions · from £21,000
- Porch extensions · from £4,050
- Double-storey extensions · from £38,500
- Planning permission for extensions · from £350
- Glass box extensions · from £30,500
- Bedroom extensions · from £26,500
- Wraparound extensions · from £36,500
- Timber frame extensions · from £21,000
- Orangery extensions · from £30,500
- Kitchen extensions · from £27,500
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
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 Clevedon
How much does an extension cost in Clevedon?
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.
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 I need planning permission for an extension in Clevedon?
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.
How long does an extension take in Clevedon?
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 Clevedon, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Clevedon
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.