Extensions over a garage in Bathgate
Thinking about an extension over a garage in Bathgate? We design it, take it through the approvals it needs and build it, with one team responsible from the first visit to the final certificate.
The basics for Bathgate at a glance.
- Postcode districts
- EH48
- County / area
- Edinburgh and the Lothians, Scotland
- Price region
- Scotland
- Guide price
- £29,500–£43,000 (£1,640–£2,400 per m²)
- Approval route
- Planning permission is usually needed: Class 1B permitted development only applies if every part of the extension is at least 10 m from all boundaries. A building warrant is needed before work starts.
- Nearest towns
- Armadale (2.5 miles), Whitburn (2.9 miles), Livingston (4.7 miles)
- Distance to Edinburgh
- about 17.7 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, a building warrant and the build, carried out by vetted teams working under S&K.
We cover Bathgate (EH48) and the places around it, including Armadale (2.5 miles), Whitburn (2.9 miles) and Livingston.
What it costs in Bathgate
Guide prices for extensions over a garage in Scotland are around £1,640–£2,400 per m² of new floor space, including VAT. For a typical project with 3 m × 6 m of new first-floor space (18 m²), that's roughly £29,500–£43,000. The fastest way to a firmer number is a free site visit, after which we price the design stage in writing.
| Spec | Per m² | 3 m × 6 m of new first-floor space (18 m²) |
|---|---|---|
| Essential | £1,510–£2,210 per m² | £27,000–£39,500 |
| Standard | £1,640–£2,400 per m² | £29,500–£43,000 |
| Premium | £1,970–£2,880 per m² | £35,500–£52,000 |
Planning and building standards in Bathgate
In Scotland, a room over a garage makes the extension more than one storey, so Class 1B applies, which needs at least 10 m to every boundary for permitted development. Attached garages are rarely that far from the boundary, so expect a householder application (£371, decided within two months) and a building warrant.
Approval in Scotland: Householder planning application: £371. Councils have two months to decide a local planning application.
Building standards: A building warrant from the council's building standards service before work starts, and a completion certificate at the end. Scotland uses its own Technical Handbooks.
Design points for Bathgate homes
Floor levels and headroom
Garage floors are often lower than the house, and the new first floor may not line up with the existing landing. We set the floor level to avoid awkward steps upstairs, while keeping enough headroom in the garage below for a car or storage.
Garage walls and the door opening
Garage walls are often a single skin of brick or block with piers, and the wide door opening needs a beam over it. Many over-garage extensions need new inner walls or a steel frame to carry the floor and to insulate properly, which we confirm before the design is fixed.
How we'd run your project
Free site visit
We visit your home in Bathgate, look at the structure, access and boundaries, and talk through what you want the new rooms to do.
Drawings and permission
Our designers produce plans and elevations, then we take care of planning or permitted development checks with the council covering Bathgate.
Detail and price
Construction drawings, engineer's calculations and building warrant approval, then a written fixed price for the build.
Build
Foundations, walls, floor, roof, windows, then first and second fix. We break through into the house as late as we can.
Questions about extensions over a garage in Bathgate
Which postcodes do you cover around Bathgate?
We cover Bathgate (EH48) and nearby places including Armadale, Whitburn and Livingston, plus the rest of Edinburgh and the Lothians. The first site visit is free.
Do I need planning permission for an extension over a garage in Bathgate?
Bathgate is in Scotland. Planning permission is usually needed: Class 1B permitted development only applies if every part of the extension is at least 10 m from all boundaries. A building warrant is needed before work starts.
How much does an extension over a garage cost in Bathgate?
Our guide for Scotland, which covers Bathgate, is £1,640–£2,400 per m² including VAT. A typical project with 3 m × 6 m of new first-floor space (18 m²) comes to about £29,500–£43,000. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.
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.
Do I need to convert the garage as well?
No. You can keep the garage for parking or storage and build only the room above, as long as the floor between them and any door into the house meet fire separation rules. Converting the garage at the same time is often good value, because the walls and foundations may be upgraded anyway.
Nearby
We also cover places near Bathgate, including:
Other extensions in Bathgate
- Rear
- Side
- Wraparound
- Part two-storey
- First floor
- Semi-detached
- Detached
- Kitchen and bedrooms
- Bedroom and en-suite
All two-storey extension services in Bathgate · Extensions over a garage across Edinburgh and the Lothians
Send us your postcode and a few details. We'll get back to you to arrange a visit and talk through your options.