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 Trowbridge?
In Trowbridge, 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 Trowbridge 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 main things that change the cost:
- Brick matching
- Moving meters, drains or the doorbell and lighting
- Size and roof style
- Front door specification
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 Trowbridge?
Approvals for a porch in Trowbridge follow the rules for 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.
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.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
From survey to sign-off, the job normally involves:
- Design to match the house
- Front door and windows
- Roof and guttering
- Foundations and brickwork
- Plastering and decoration
- Electrics for lighting
How long does it take?
Allow 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 Trowbridge
The South West mixes stone and render cottages with post-war and newer estates, and local materials matter more here when matching an extension.
We work across Trowbridge and neighbouring areas such as Melksham, Bath and Frome. Postcodes we cover in Trowbridge include BA14.
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 in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about porches in Trowbridge
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.
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.
How much does a porch cost in Trowbridge?
In Trowbridge, 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.
Who approves a porch in Trowbridge?
Planning matters in Trowbridge go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How long does it take?
Usually 2 to 4 weeks on site.