House extensions in Newquay
Every type of house extension in Newquay, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsTR7, TR8
- Price regionSouth West England (×1.02)
- Planning rulesEngland
- Site visitFree, no obligation
Which extension suits a Newquay home?
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.
Depending on the plot, orangery extensions and single-storey rear extensions are often the strongest options, with pitched roof extensions worth considering where there is room.
Planning rules in Newquay
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 two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
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 Newquay
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) |
|---|---|---|
| Side return extensions | 11 m² | £26,500 – £34,000 |
| Extensions over a garage | 12 m² | £25,500 – £33,500 |
| Double-storey extensions | 32 m² | £58,500 – £77,000 |
| Conservatory replacement extensions | 14 m² | £30,500 – £39,500 |
| Wraparound extensions | 25 m² | £58,500 – £74,000 |
Newquay and surrounding towns
Our survey diary covers Newquay, including TR7, TR8. We also work in nearby Truro (10 miles), St Austell (14 miles), Redruth (14 miles), Bodmin (16 miles), Camborne (17 miles). Plymouth, in Devon, is roughly 41 miles from Newquay and also on our list.
Every extension type in Newquay
- Home office extensions · from £16,000
- Building regulations for extensions · from £900
- Porch extensions · from £4,050
- Double-storey extensions · from £38,500
- Bungalow extensions · from £26,500
- Orangery extensions · from £30,500
- Flat roof extensions · from £21,000
- Side return extensions · from £18,000
- Pitched roof extensions · from £22,500
- Annexe extensions · from £56,000
- Kitchen extensions · from £27,500
- Extension plans and drawings · from £1,200
- Timber frame extensions · from £21,000
- Glass box extensions · from £30,500
- Utility and boot room extensions · from £14,000
- Side extensions · from £22,000
- Conservatory replacement extensions · from £20,000
- Bedroom extensions · from £26,500
- Extensions over a garage · from £24,000
- Wraparound extensions · from £36,500
- Planning permission for extensions · from £350
- Single-storey rear 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
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Newquay
How much does an extension cost in Newquay?
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.
How long does an extension take in Newquay?
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.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Newquay, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Newquay
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.