Extensions over a garage in Leicester
For an extension over a garage in Leicester, the first questions are always the same: how big, which approvals, and what it will cost. This page answers all three for Leicestershire.
Useful details for planning an extension over a garage in Leicester.
- Postcode districts
- LE1
- County / area
- Leicestershire, England
- Price region
- East Midlands
- Guide price
- £31,000–£45,000 (£1,720–£2,500 per m²)
- Approval route
- Planning permission is needed: in England, permitted development only allows single-storey extensions to the side.
- Nearest towns
- Belgrave (1 mile), Humberstone (2 miles), Birstall (2 miles)
- First visit
- Free, no obligation
About an extension over a garage
An extension over a garage suits you if you have an attached single garage beside the house and need an extra bedroom or a larger main bedroom with an en-suite. You get an inspection of the garage structure, a design that matches the house, the approvals your nation needs, structural design, building regulations approval and the build, carried out by vetted teams working under S&K.
Around Leicester we also work in Belgrave, Humberstone and Birstall, and across the rest of Leicestershire. Postcode district in and near Leicester: LE1.
What it costs in Leicester
Expect an extension over a garage in Leicester to land somewhere around £31,000–£45,000 for 3 m × 6 m of new first-floor space (18 m²). Our East Midlands guide rate is £1,720–£2,500 per m², including VAT. Design fees, structural calculations and approval fees are separate and listed on our prices page.
| Spec | Per m² | 3 m × 6 m of new first-floor space (18 m²) |
|---|---|---|
| Essential | £1,580–£2,300 per m² | £28,500–£41,500 |
| Standard | £1,720–£2,500 per m² | £31,000–£45,000 |
| Premium | £2,060–£3,000 per m² | £37,000–£54,000 |
Planning and building regulations in Leicester
In England, most garages sit beside the house, so building over one makes a two-storey extension beyond a side wall, which always needs planning permission. If the garage is at the rear, the 3 m and 7 m rules for two-storey rear extensions apply, measured from the original house. A householder application costs £548 (or £575 for applications made from 8 December 2026).
Approval in England: Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
Building regulations: Building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end.
Design points for Leicester homes
Matching the house
A room over a garage usually sits beside the front of the house in full view, so roof form, ridge height, windows and brick matter. Setting the front wall and ridge back slightly from the main house usually helps it look as if it belongs.
Checking the garage foundations
Garages are often built on shallow strip footings sized for a single-storey wall and a light roof. A trial hole shows their depth and condition, and the engineer decides whether they can carry two storeys or need underpinning or new foundations inside the garage.
How we'd run your project
Visit and first ideas
One of our team visits your house in Leicester, checks the walls, roof and drains, and sketches out options with you.
Choose the approval route
Some designs fit permitted development, most need a householder application. We decide which applies in England before drawing in detail.
Structure and building control
A structural engineer sizes the foundations and steels, and we get building regulations approval before work starts.
Build it
The new structure goes up first, then we open into the house, finish inside and get the completion certificate.
Questions about extensions over a garage in Leicester
Which postcodes do you cover around Leicester?
We cover Leicester (LE1) and nearby places including Belgrave, Humberstone and Birstall, plus the rest of Leicestershire. The first site visit is free.
How much does an extension over a garage cost in Leicester?
Our guide for the East Midlands, which covers Leicester, is £1,720–£2,500 per m² including VAT. A typical project with 3 m × 6 m of new first-floor space (18 m²) comes to about £31,000–£45,000. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.
Do I need planning permission for an extension over a garage in Leicester?
Leicester is in England, so England planning rules apply. Planning permission is needed: in England, permitted development only allows single-storey extensions to the side. If in doubt, a lawful development certificate or a planning application gives you certainty before you build.
Can I add an en-suite above the garage?
Yes, and it is a common choice for a main bedroom. The en-suite needs an extract fan under Part F, a route for the soil pipe down to the drains and enough fall for the waste, which can be harder over a garage. We plan the pipe route through the garage or an outside wall early.
Can my garage take a room on top?
Sometimes, but it needs checking. Many garages are built on shallow footings with thin walls, designed only for a single storey. We dig a trial hole and inspect the walls, and the structural engineer decides whether to reuse them, strengthen them, underpin the footings or build new foundations inside the garage.
Nearby
Close to Leicester? We work across the area, including:
Other extensions in Leicester
- Rear
- Side
- Wraparound
- Part two-storey
- First floor
- Semi-detached
- Detached
- Kitchen and bedrooms
- Bedroom and en-suite
All two-storey extension services in Leicester · Extensions over a garage across Leicestershire
Ready to talk it through? Call us or send the form and we'll arrange a visit to your home in Leicester.