What is a porch?

A porch is a small extension built around the front door, giving a lobby for coats and shoes and stopping draughts reaching the hall. Most are brick with a pitched tiled roof to match the house, though glazed and timber porches are also common.
How much does a porch cost in Mendip?
In Mendip, a porch typically costs £6,750–£16,500 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). Building costs in the South West are close to the UK average, so the figures for Mendip are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| From a 3 m² porch to a small front extension | £6,750–£16,500 |
| Higher specification | £16,500–£20,500 |
The biggest cost drivers are:
- Whether building regulations apply
- Size and roof style
- Front door specification
- Moving meters, drains or the doorbell and lighting
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a porch in Mendip?
Before anything is built in Mendip, we confirm which approvals apply in England. In England a porch is permitted development if its ground floor area is no more than 3 square metres, no part is over 3 metres high and it is at least 2 metres from a boundary next to a road.
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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
From survey to sign-off, the job normally involves:
- Front door and windows
- Electrics for lighting
- Roof and guttering
- Plastering and decoration
- Foundations and brickwork
- Design to match the house
How long does it take?
The build itself usually takes 2 to 4 weeks on site. Design and approvals come first and typically take 6 to 12 weeks, depending on the approval route.
Building in Mendip
In parts of the South West, protected landscapes and conservation areas shape what can be built, so materials and roof forms are chosen carefully.
If your home is in Mendip or close by in Frome, Keynsham and Nailsea, 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 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 sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about porches in Mendip
How much does a porch cost in Mendip?
In Mendip, a porch typically costs £6,750–£16,500 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Will it match my house?
We source matching bricks and tiles where possible, or suggest a deliberate contrast.
Does a porch need building regulations?
In England and Wales a ground-level porch under 30 square metres is usually exempt if the front door stays in place and the glazing meets safety standards. In Scotland the exemption is much smaller (around 8 square metres, with no new opening into the house). If the front door is removed, approval is needed. We check this for your design.
Who approves a porch in Mendip?
Planning matters in Mendip go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
Can you move the gas or electric meter?
Meters belong to the supplier or network operator. We coordinate their move as part of the job, which can add time.
