Side extensions in Coventry
Thinking about a side extension for your Coventry 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 CoventryFrom £21,000 inc VAT
- PlanningSingle storey can be permitted development
- Build time10–18 weeks on site
- Postcode districtsCV1, CV2, CV3, CV4, CV5
Working in Coventry
Site visits are available across Coventry (CV1, CV2, CV3, CV4, CV5, CV6). We also work in nearby Solihull (11 miles), Shirley (13 miles), Sutton Coldfield (17 miles), Birmingham (17 miles).
For homes towards Warwickshire, Kenilworth is around 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.
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.
Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.
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).
Included in a typical project
- Foundations near boundaries and any drains
- Windows, doors and finishes to match
- Structure, roof tied into the house
- Planning route checked or application made
What should I budget for a side extension in Coventry?
For Coventry 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 Coventry: £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 |
For a figure based on your own dimensions, use our guide-price tool.
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
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 people ask about side extensions
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Coventry, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do you cover all of Coventry?
Yes. We cover Coventry and the surrounding parts of West Midlands. Site visits are free and there is no obligation.
Do I need building regulations approval in Coventry?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
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.
Can I build a side extension without planning permission?
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 planning application.
Book a free site visit in Coventry
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.