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 Hayes?
In Hayes, a porch typically costs £8,500–£21,000 from a 3 m² porch to a small front extension, including VAT at 20% (standard rate). Prices across London are typically 30% above the UK average for this kind of work, which is reflected in the range for Hayes. 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:
- Whether building regulations apply
- Size and roof style
- Brick matching
- Front door specification
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 Hayes?
Approvals for a porch in Hayes 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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
What we take care of:
- Plastering and decoration
- Design to match the house
- Electrics for lighting
- Front door and windows
- Foundations and brickwork
- Roof and guttering
How long does it take?
Expect 2 to 4 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Hayes
Many London boroughs have conservation areas and detailed design guides, so early design advice saves time at the planning stage.
If your home is in Hayes or close by in Richmond, Chiswick and Barnes, 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 pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 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 Hayes
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 long does it take?
Usually 2 to 4 weeks on site.
Who approves a porch in Hayes?
Planning matters in Hayes go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How much does a porch cost in Hayes?
In Hayes, 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.
Will it match my house?
We source matching bricks and tiles where possible, or suggest a deliberate contrast.
