Home office extensions in Kenilworth: design, approvals and build
Thinking about a home office extension for your Kenilworth home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in KenilworthFrom £15,500 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time8–12 weeks on site
- Postcode districtsCV8

What is included
- Layout for desk, storage and video calls
- Sound insulation to the adjoining rooms
- Heating or cooling sized for the room
- Window and rooflight placement to avoid screen glare
- Data cabling and plenty of sockets
Will the council need to approve it?
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.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
How much does a home office extension cost 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: £1,790 to £3,300 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 2.5 m × 3.2 m 8 m² | £15,500 – £18,500 | £16,500 – £21,000 | £20,500 – £26,500 |
| 3 m × 3.6 m 11 m² | £19,500 – £23,500 | £22,500 – £29,000 | £28,500 – £36,500 |
| 3 m × 5 m 15 m² | £26,500 – £32,500 | £31,000 – £39,500 | £39,000 – £49,500 |
Want a range for your exact size? The guide-price tool takes about a minute.
Extensions in and around Kenilworth
We cover Kenilworth and the postcode districts CV8. We also work in nearby Warwick (5 miles), Leamington Spa (5 miles), Bedworth (10 miles), Stratford-upon-Avon (12 miles).
Just over the West Midlands border, Coventry is about 5 miles away. 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
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
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
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Home office extension questions answered
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 see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Kenilworth, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Who do I contract with for a home office extension in Kenilworth?
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.
Can I claim the cost against tax?
Building work on your home is not normally an allowable business expense, and claiming it can have capital gains tax effects. Speak to an accountant before assuming any tax relief.
How much does a home office extension cost?
Our guide range is about £1,790 to £3,300 per m² including VAT. An 11 m² standard-spec office is typically £22,500 to £29,000 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.