Porch extensions for homes in Preston
A porch extension in Preston starts with the right design and the right approval route. We take care of both, then build it with our own project management.
- Guide price in PrestonFrom £3,800 inc VAT
- PlanningUsually permitted development under 3 m²
- Build time2–4 weeks on site
- Postcode districtsPR1, PR2, PR4, PR5, PR25

Covering Preston
Site visits are available across Preston (PR1, PR2, PR4, PR5, PR25, PR26). Neighbouring towns we cover include Leyland (5 miles), Chorley (9 miles), Blackburn (9 miles), Darwen (11 miles).
Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
Porch extension prices in Preston
Prices below are for Preston, using the North West England factor of ×0.95. They are guide ranges including VAT for the build only, not a quote.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Small brick or glazed porch, up to 3 m² | £3,800 – £6,200 |
| Standard | Brick porch with tiled roof and composite door | £5,700 – £9,050 |
| Premium | Larger porch with WC or oak frame and premium glazing | £8,550 – £14,250 |
Try the guide-price tool to see a range for your own size and finish.
Included in a typical project
- Foundations and drainage for rainwater
- Front door, glazing and electrics
- Planning check against the porch limits
- Tiled, slate or flat roof
- Brick, render or oak frame walls
- Design to suit the house style
Do I need planning permission in Preston?
In England a porch is usually permitted development if its ground floor area is no more than 3 m² measured externally, no part is over 3 m high, and no part is within 2 m of a boundary next to a road.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Our process, step by step
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
We visit your Preston home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions people ask about porch extensions
How long does a porch extension take to build in Preston?
On site, typically 2 to 4 weeks once approvals are in place. Before that, allow 2–8 weeks design and approvals.
Who do I contract with for a porch extension in Preston?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do you cover all of Preston?
Yes. We cover Preston and the surrounding parts of Lancashire. Site visits are free and there is no obligation.
Do I need planning permission for a porch?
In England a porch is usually permitted development if its ground floor area is no more than 3 m² (measured externally), no part is higher than 3 m, and no part is within 2 m of a boundary next to a highway. Other nations have similar but separate rules.
How much does a porch cost?
Our guide range is about £3,800 to £14,250 including VAT, depending on size, materials and whether it includes a WC.
Book a free site visit in Preston
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.