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 Rottingdean?
In Rottingdean, a garage conversion typically costs £20,000–£33,500 for a single integral garage, including VAT at 20% (standard rate). The guide for Rottingdean reflects typical costs in the South East, roughly 12% above the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £20,000–£33,500 |
| Higher specification | £33,500–£42,000 |
The main things that change the cost:
- Foundations under the old door opening
- Single or double garage
- Whether planning permission is needed
- Bathroom or kitchen
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a garage conversion in Rottingdean?
The approval route for Rottingdean is set by planning law 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.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
Handled as part of most garage conversions:
- Planning check for removed permitted development rights
- Drawings and building control application
- Foundation check under the garage door opening
- Wall and ceiling insulation
- Building control completion
- Electrics, heating and plastering
How long does it take?
Build time is typically 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 Rottingdean
Commuter towns across the South East have many 1930s and post-war semis that suit rear extensions and hip-to-gable loft conversions.
From BN2 outwards, we take on projects throughout Rottingdean and the surrounding parts of East Sussex.
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 Rottingdean
How long does it take?
Typically 3 to 6 weeks on site.
How much does a garage conversion cost in Rottingdean?
In Rottingdean, a garage conversion typically costs £20,000–£33,500 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
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.
Do you build garage conversions in Rottingdean?
Yes. We build garage conversions across Rottingdean, including postcodes BN2 and BN51. Every project starts with a free home visit.
Can a detached garage be converted?
Yes, but using it as separate living accommodation may need planning permission.