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 Bexleyheath?
In Bexleyheath, a garage conversion typically costs £23,500–£39,000 for a single integral garage, including VAT at 20% (standard rate). Building costs in London run about 30% above the UK average, and the figures for Bexleyheath are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £23,500–£39,000 |
| Higher specification | £39,000–£49,000 |
What moves the price most:
- Bathroom or kitchen
- Heating and flooring
- Foundations under the old door opening
- Integral, attached or detached
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a garage conversion in Bexleyheath?
Before anything is built in Bexleyheath, we confirm which approvals apply in England. In England converting an integral or attached garage usually does not need planning permission, unless a condition on the house removed permitted development rights (common on estates built in recent decades) or the house is listed. Building regulations approval is always needed.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
What we take care of:
- Electrics, heating and plastering
- New wall and window to replace the garage door
- Drawings and building control application
- Building control completion
- Foundation check under the garage door opening
- Wall and ceiling insulation
How long does it take?
The build itself usually takes 3 to 6 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Bexleyheath
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
Our Bexleyheath coverage includes postcode districts DA6 and DA7, and we also work in nearby places such as Welling, Erith and Sidcup.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 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 Bexleyheath
Can a detached garage be converted?
Yes, but using it as separate living accommodation may need planning permission.
How much does a garage conversion cost in Bexleyheath?
In Bexleyheath, a garage conversion typically costs £23,500–£39,000 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.
Will losing the garage affect parking?
Councils sometimes object if on-street parking is under pressure. We check local parking standards.
Do you build garage conversions in Bexleyheath?
Yes. We build garage conversions across Bexleyheath, including postcodes DA6 and DA7. Every project starts with a free home visit.
