Extensions over a garage for homes in Warwick
Our design and build teams take on over-garage extensions in Warwick, from the first measured survey through planning and building control to the finished room.
- Guide price in WarwickFrom £23,000 inc VAT
- PlanningHouseholder application needed
- Build time12–18 weeks on site
- Postcode districtsCV31, CV32, CV34
What we take care of
- Structural survey of garage walls and foundations
- Insulation, electrics, heating and finish
- Design and householder planning application
- New floor structure, walls and roof
- Opening into the existing first floor
Guide prices for Warwick
Labour and material costs vary across the UK, so for Warwick we use our West Midlands factor (×0.97). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Warwick: £1,750 to £3,300 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Over a single garage 12 m² | £23,000 – £28,500 | £24,000 – £31,500 | £31,000 – £40,000 |
| Over a large single garage 16 m² | £27,500 – £34,500 | £32,500 – £42,000 | £41,500 – £53,000 |
| Over a double garage 24 m² | £41,500 – £51,500 | £48,500 – £63,000 | £62,500 – £79,500 |
Try the guide-price tool to see a range for your own size and finish.
Extensions in and around Warwick
Site visits are available across Warwick (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).
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.
Planning and approvals in Warwick
In England any side extension over one storey, including a room built over a side garage, needs a householder planning application. The fee is £548 from 1 April 2026 and councils aim to decide within 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.
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).
From first visit to completion
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
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions people ask about over-garage extensions
Do you cover all of Warwick?
Yes. We cover Warwick and the surrounding parts of Warwickshire. Site visits are free and there is no obligation.
Who do I contract with for an over-garage extension in Warwick?
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.
Do I need building regulations approval in Warwick?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Can I keep using the garage during the build?
Usually not for parking. The garage roof is removed and the space below is used for access and props for part of the build.
Does building over a garage need planning permission?
In England and the rest of the UK, adding a storey over a side garage almost always needs a planning application, because two-storey side extensions are outside permitted development.
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.