What is a garage conversion?
A garage conversion turns an integral or attached garage into habitable space, such as a study, playroom, bedroom or utility. The garage door is replaced with a wall and window, the floor is raised and insulated, and the walls and roof are brought up to building regulations.
How much does a garage conversion cost in Bonnyrigg?
In Bonnyrigg, a garage conversion typically costs £17,500–£29,000 for a single integral garage, including VAT at 20% (standard rate). Building costs in Scotland are close to the UK average, so the figures for Bonnyrigg are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £17,500–£29,000 |
| Higher specification | £29,000–£36,000 |
The biggest cost drivers are:
- Heating and flooring
- Integral, attached or detached
- Bathroom or kitchen
- Single or double garage
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a garage conversion in Bonnyrigg?
Approvals for a garage conversion in Bonnyrigg follow the rules for Scotland. In Scotland converting a garage usually does not need planning permission if the outside appearance barely changes, but a building warrant is needed before work starts.
Scotland has no Party Wall Act. Work on shared walls is governed by your title deeds, the Tenements (Scotland) Act 2004 for flats, and common law, so we agree arrangements with neighbours in writing before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
On a typical garage conversion we handle:
- Floor raised with insulation and damp-proof membrane
- Building control completion
- Drawings and building control application
- Foundation check under the garage door opening
- Electrics, heating and plastering
- Planning check for removed permitted development rights
How long does it take?
Expect 3 to 6 weeks on site. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Bonnyrigg
In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.
If your home is in Bonnyrigg or close by in Musselburgh, Penicuik and Broxburn, a free home visit is the first step.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about garage conversions in Bonnyrigg
Do I need planning permission for a garage conversion in Bonnyrigg?
In Scotland converting a garage usually does not need planning permission if the outside appearance barely changes, but a building warrant is needed before work starts.
How long does it take?
Typically 3 to 6 weeks on site.
Do I need building regulations approval?
Yes. Converting a garage to a habitable room needs building control approval for insulation, ventilation, fire safety and the new wall.
Who approves a garage conversion in Bonnyrigg?
Planning matters in Bonnyrigg go to the council covering your address, and the work needs a building warrant. We prepare and submit the applications for you.
How much does a garage conversion cost in Bonnyrigg?
In Bonnyrigg, a garage conversion typically costs £17,500–£29,000 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Can the floor be level with the house?
Yes. The garage floor is raised and insulated to match the house floor level.