Lancashire
Pitched and lean-to roof rear extensions in Lancashire
Lean-to, gable and hipped roofs that give a vaulted ceiling. Rear extensions in Lancashire: we cover 28 towns including Preston, Burnley and Blackburn, with design, approvals and the build under one contract.
Pitched roofs suit the cottages and slate-roofed houses in parts of Lancashire. Stone and brick terraces are common around Lancashire. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How much does a pitched-roof rear extension cost in Lancashire?
Guide prices for a pitched-roof rear extension in Lancashire start from our North West England rate of £1,880–£3,060 per square metre, including VAT. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £22,500–£36,500 |
| 4 m wide × 5 m deep (20 m²) | £37,500–£61,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission in Lancashire?
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
Where in Lancashire do we work?
FAQ
Questions people ask
Will a lean-to fit under my windows?
We check the sill heights at the survey; low windows usually mean a flat roof instead.
Are roof windows allowed?
Yes; they are the usual way to bring light into a pitched-roof extension.
Is a pitched roof more expensive?
Slightly, typically a few per cent more than a flat roof of the same area.
Do you cover all of Lancashire?
We cover 28 towns and districts in Lancashire, including Preston, Burnley and Blackburn.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.