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 Wandsworth?
In Wandsworth, a porch typically costs £8,500–£21,000 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). We start from a UK-wide guide and adjust it for London, where labour and materials are typically about 30% above average. 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 main things that change the cost:
- Whether building regulations apply
- Front door specification
- Moving meters, drains or the doorbell and lighting
- Size and roof style
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 Wandsworth?
Approvals for a porch in Wandsworth 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.
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.
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:
- Foundations and brickwork
- Electrics for lighting
- Design to match the house
- Plastering and decoration
- Roof and guttering
- Front door and windows
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 Wandsworth
Many London boroughs have conservation areas and detailed design guides, so early design advice saves time at the planning stage.
Projects in Wandsworth (SW18 and SW95) are surveyed in person before we quote, so the price reflects your actual property.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about porches in Wandsworth
How long does it take?
Usually 2 to 4 weeks on site.
Who approves a porch in Wandsworth?
Planning matters in Wandsworth go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
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.
How much does a porch cost in Wandsworth?
In Wandsworth, 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.