How much to convert a carport into a garage?

We've got an open carport at the side of the house and want it bricked up with a proper door on the front. Roughly what would that cost? Would we need planning permission?

Asked by Jackie on 30th Jul 2026
Expert Trade Answers
"Assuming:

Single-width carport (around 2.5–3m wide)
Brickwork to the front
New composite or uPVC front door
Foundations already in place

You'd typically be looking at:

Brickwork and foundations (if needed): £1,000–£2,000
Good quality composite front door fitted: £1,500–£2,500
Making good, insulation, plastering and finishes: £800–£2,000

Typical total: £3,500–£6,500 + VAT

If you also want:

Windows
Electrics
Internal insulation
Converting it into a habitable room

then you're more likely looking at £6,000–£10,000+ depending on the specification."
Answered on 30th Jul 2026 - Member since Apr 2023 - report
"Good morning

£11/13,000 not really a lot to go off no measurements do you want the inside? Plastering electrics insulating the walls without seeing a job it’s hard to estimate but if you look around at £11/13,000.

You need to contact building control as you will need a building inspector to pass the work"
Answered on 30th Jul 2026 - Member since Jun 2025 - report
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