House extensions in Warwick
Planning an extension in Warwick? Compare extension types, see guide prices adjusted for Warwick and book a free site visit.
- Postcode districtsCV31, CV32, CV34
- Price regionWest Midlands (×0.97)
- Planning rulesEngland
- Site visitFree, no obligation
Approvals for an extension in Warwick
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).
What extensions cost in Warwick
Prices on this page use our West Midlands factor of ×0.97, 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) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £29,000 – £37,500 |
| Single-storey rear extensions | 20 m² | £39,500 – £50,500 |
| Kitchen extensions | 20 m² | £40,500 – £51,500 |
| Double-storey extensions | 32 m² | £55,500 – £73,000 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Orangery extensions | 16 m² | £43,000 – £54,500 |
| Wraparound extensions | 25 m² | £55,500 – £70,500 |
What works best for Warwick houses?
The West Midlands has a large stock of 1930s and post-war semi-detached houses, which are well suited to rear, side and over-garage extensions, plus Victorian terraces in the older inner areas.
Start by comparing kitchen extensions, single-storey rear extensions and double-storey extensions: between them they cover most of the layouts we see requested for houses like these.
Areas we cover around Warwick
Our survey diary covers Warwick, including CV31, CV32, CV34. Nearby, we also take on projects in Leamington Spa (3 miles), Kenilworth (5 miles), Stratford-upon-Avon (8 miles), Bedworth (14 miles), Rugby (15 miles). Just over the West Midlands border, Coventry is about 9 miles away.
Every extension type in Warwick
- Side return extensions · from £17,000
- Kitchen extensions · from £26,000
- Extension plans and drawings · from £1,150
- Home office extensions · from £15,500
- Conservatory replacement extensions · from £19,000
- Bungalow extensions · from £25,000
- Timber frame extensions · from £20,000
- Flat roof extensions · from £20,000
- Side extensions · from £21,000
- Planning permission for extensions · from £300
- Extensions over a garage · from £23,000
- Utility and boot room extensions · from £13,500
- Orangery extensions · from £29,000
- Double-storey extensions · from £36,500
- Bedroom extensions · from £25,000
- Porch extensions · from £3,850
- Pitched roof extensions · from £21,500
- Glass box extensions · from £29,000
- Single-storey rear extensions · from £20,000
- Annexe extensions · from £53,000
- Wraparound extensions · from £34,500
- Building regulations for extensions · from £850
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 draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Warwick
How much does an extension cost in Warwick?
Using our West Midlands factor (×0.97), a standard-spec single-storey extension of 20 m² is a guide £39,500 to £50,500 including VAT, and a 32 m² two-storey extension £55,500 to £73,000. Your written price follows the survey.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Warwick, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Do I need planning permission for an extension in Warwick?
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.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Book a free site visit in Warwick
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.