Newport and Monmouthshire
Pitched and lean-to roof rear extensions in Newport and Monmouthshire
Lean-to, gable and hipped roofs that give a vaulted ceiling. Rear extensions in Newport and Monmouthshire: we cover 6 towns including Newport, Abergavenny and Chepstow, with design, approvals and the build under one contract.
Pitched roofs suit the cottages and slate-roofed houses in parts of Newport and Monmouthshire. Newport and Monmouthshire has Victorian terraces near the centre and semis further out. Welsh permitted development allows up to 4 metres at the rear for many houses.
How much does a pitched-roof rear extension cost in Newport and Monmouthshire?
Guide prices for a pitched-roof rear extension in Newport and Monmouthshire start from our Wales rate of £1,860–£3,020 per square metre, including VAT. Prices in Wales sit below our West Midlands baseline; sloping sites are 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) | £37,000–£60,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission in Newport and Monmouthshire?
Welsh permitted development allows a single-storey rear extension of up to 4 metres in depth and 4 metres in height, subject to boundary and garden-coverage limits. There is no larger-extension prior approval scheme in Wales.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent.
Where in Newport and Monmouthshire 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 Newport and Monmouthshire?
We cover 6 towns and districts in Newport and Monmouthshire, including Newport, Abergavenny and Chepstow.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.