Norfolk
Pitched and lean-to roof rear extensions in Norfolk
Lean-to, gable and hipped roofs that give a vaulted ceiling. We design and build rear extensions across Norfolk, from Norwich and Great Yarmouth to King's Lynn, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.

Pitched roofs suit the cottages and slate-roofed houses in parts of Norfolk. Post-war semis and newer estates are typical of Norfolk, and many have room for a full-width extension. Shrinkable clay is common in the East of England, so foundations near trees and hedges are designed to NHBC-style depth guidance.
How much does a pitched-roof rear extension cost in Norfolk?
For Norfolk we work from the East of England rate: £2,120–£3,440 per square metre of new floor, including VAT, standard specification. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £25,500–£41,500 |
| 4 m wide × 5 m deep (20 m²) | £42,500–£69,000 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission in Norfolk?
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is 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 Norfolk 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 Norfolk?
We cover 11 towns and districts in Norfolk, including Norwich, Great Yarmouth and King's Lynn.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.