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 Northampton?
In Northampton, a porch typically costs £6,250–£15,000 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). Building costs in the East Midlands run about 5% below the UK average, and the figures for Northampton are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| From a 3 m² porch to a small front extension | £6,250–£15,000 |
| Higher specification | £15,000–£19,000 |
What moves the price most:
- Whether building regulations apply
- Size and roof style
- Front door specification
- Moving meters, drains or the doorbell and lighting
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a porch in Northampton?
Whether you need planning permission depends on your house and its location 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.
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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
What we take care of:
- Design to match the house
- Roof and guttering
- Front door and windows
- Foundations and brickwork
- Plastering and decoration
- Electrics for lighting
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 Northampton
In the East Midlands, many estates built since the 1960s have integral garages that convert well into a study or bedroom.
Northampton sits in Northamptonshire. We cover the whole of Northampton, including postcodes NN1.
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
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about porches in Northampton
Can I have a toilet in my porch?
A downstairs toilet usually needs a larger front extension, a drainage connection and building regulations approval.
How much does a porch cost in Northampton?
In Northampton, a porch typically costs £6,250–£15,000 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.
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.
How long does it take?
Usually 2 to 4 weeks on site.
Who approves a porch in Northampton?
Planning matters in Northampton go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
