Kenilworth side extensions, designed and built
A side extension in Kenilworth starts with the right design and the right approval route. We take care of both, then build it with our own project management.
- Guide price in KenilworthFrom £21,000 inc VAT
- PlanningSingle storey can be permitted development
- Build time10–18 weeks on site
- Postcode districtsCV8
What should I budget for a side extension in Kenilworth?
For Kenilworth we adjust our national guide rates by ×0.97, the factor we use for West Midlands. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Kenilworth: £1,700 to £3,300 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 2.5 m × 5 m 12 m² | £21,000 – £26,000 | £23,500 – £31,000 | £30,000 – £40,000 |
| 3 m × 6 m 18 m² | £30,500 – £37,000 | £35,500 – £46,500 | £45,000 – £59,500 |
| 3 m × 8 m 24 m² | £40,500 – £49,000 | £47,500 – £62,000 | £60,500 – £79,500 |
Want a range for your exact size? The guide-price tool takes about a minute.
What is included
- Planning route checked or application made
- New openings through the side wall
- Windows, doors and finishes to match
- Foundations near boundaries and any drains
- Structure, roof tied into the house
- Survey, design and street-view drawings
Will the council need to approve it?
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.
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).
Local to Kenilworth
Our survey diary covers Kenilworth, including CV8. Neighbouring towns we cover include Warwick (5 miles), Leamington Spa (5 miles), Bedworth (10 miles), Stratford-upon-Avon (12 miles).
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.
How the project works
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
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 people ask about side extensions
Will my neighbours in Kenilworth be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Do I need building regulations approval in Kenilworth?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Do you cover all of Kenilworth?
Yes. We cover Kenilworth and the surrounding parts of Warwickshire. Site visits are free and there is no obligation.
Can I build over my driveway?
Yes, if the foundations work and you keep any parking the council requires. Drains and services under drives are common, so we check before design.
How much does a side extension cost?
Our guide range is about £1,700 to £3,300 per m² including VAT, depending on specification, so a standard 18 m² single-storey side extension lands around £35,500 to £46,500 in Kenilworth.
Book a free site visit in Kenilworth
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.