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 Monmouth?
In Monmouth, a porch typically costs £6,000–£14,500 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). The guide for Monmouth reflects typical costs in Wales, roughly 8% below the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| From a 3 m² porch to a small front extension | £6,000–£14,500 |
| Higher specification | £14,500–£18,000 |
What moves the price most:
- Moving meters, drains or the doorbell and lighting
- Whether building regulations apply
- Size and roof style
- Brick matching
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 porch in Monmouth?
Here is how the rules work for a porch in Wales. In Wales small porches are generally permitted development within similar limits: about 3 square metres of ground area, no more than 3 metres high and set back from a road boundary.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
The work we manage on a porch:
- Plastering and decoration
- Front door and windows
- Electrics for lighting
- Design to match the house
- Roof and guttering
- Foundations and brickwork
How long does it take?
The build itself usually takes 2 to 4 weeks on site. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Monmouth
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
We work across Monmouth and neighbouring areas such as Chepstow, Abergavenny and Caldicot. Postcodes we cover in Monmouth include NP25.
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 Monmouth
Can I have a toilet in my porch?
A downstairs toilet usually needs a larger front extension, a drainage connection and building regulations approval.
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.
Do I need planning permission for a porch in Monmouth?
In Wales small porches are generally permitted development within similar limits: about 3 square metres of ground area, no more than 3 metres high and set back from a road boundary.
How much does a porch cost in Monmouth?
In Monmouth, a porch typically costs £6,000–£14,500 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.
Do you build porches in Monmouth?
Yes. We build porches across Monmouth, including postcodes NP25. Every project starts with a free home visit.
How long does it take?
Usually 2 to 4 weeks on site.
