How much does it cost to build a porch?
Porches vary by size and material. Get an indicative all-in figure below, then build it into your project.
What a porch involves
- 1Base and structure
A small foundation/slab, then the frame — uPVC, timber or brick to match the house.
- 2Door and glazing
A new external door and glazing, plus a small roof (pitched or flat) tied into the house.
- 3Permitted development
Porches under ~3 m² floor area and within height/position limits are usually permitted development — check before building.
A porch adds a little space and a lot of kerb appeal — a defined, weatherproof entrance reads as 'cared for'. Keep it within permitted-development limits and match the material to the house for the best return on a flip.
Porch costs by type (indicative)
| Type | Description | Indicative cost |
|---|---|---|
| uPVC porch | Glazed, lightweight | £2,500 – £5,000 |
| Timber-frame porch | Character option | £3,500 – £7,000 |
| Brick-built porch | Matched to house | £5,000 – £10,000+ |
| Canopy only | Roof over the door | £600 – £2,000 |
All-in incl. base and door. Porches within permitted-development limits usually avoid planning.
Frequently asked questions
How much does it cost to build a porch?+
A uPVC porch typically costs £2,500–£5,000; timber £3,500–£7,000; a brick-built porch matched to the house £5,000–£10,000+. A simple door canopy is much less.
Do I need planning permission for a porch?+
A porch is usually permitted development if the floor area is under about 3 m², it's under 3 m high, and it's not within 2 m of a boundary facing a road. Outside those limits, or in some areas, you'll need permission.
Related tools & guides
Want to know how these figures are calculated? See our cost methodology.
Cost figures shown are indicative estimates, not quotations. You are responsible for verifying all costs (obtain contractor quotes) and any figures submitted to a lender. ScopeWise is a documentation tool, not financial, tax, structural or planning advice. HMO compliance prompts are guidance only — confirm requirements with your local council, as standards and licensing vary by authority.