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 Streatham?
In Streatham, a porch typically costs £8,500–£21,000 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). The guide for Streatham reflects typical costs in London, roughly 30% above 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 | £8,500–£21,000 |
| Higher specification | £21,000–£26,000 |
The biggest cost drivers are:
- Moving meters, drains or the doorbell and lighting
- Brick matching
- Size and roof style
- Front door specification
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 Streatham?
The approval route for Streatham is set by planning law 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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
Handled as part of most porches:
- Design to match the house
- Roof and guttering
- Plastering and decoration
- Foundations and brickwork
- Electrics for lighting
- Front door and windows
How long does it take?
Allow 2 to 4 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Streatham
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
If your home is in Streatham or close by in Balham, Tooting and Clapham, a free home visit is the first step.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 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 handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about porches in Streatham
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.
Who approves a porch in Streatham?
Planning matters in Streatham 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.
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 Streatham?
In Streatham, a porch typically costs £8,500–£21,000 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.