County Londonderry
Pitched and lean-to roof rear extensions in County Londonderry
Lean-to, gable and hipped roofs that give a vaulted ceiling. We design and build rear extensions across County Londonderry, from Derry~Londonderry and Coleraine to Limavady, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.
Pitched roofs suit the cottages and slate-roofed houses in parts of County Londonderry. County Londonderry has terraces near the centre, semis on the edges and many detached houses and bungalows in the surrounding countryside, where plots are often generous.
How much does a pitched-roof rear extension cost in County Londonderry?
In County Londonderry, our guide for a pitched-roof rear extension is £1,740–£2,830 per square metre including VAT for a standard specification. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,000–£34,000 |
| 4 m wide × 5 m deep (20 m²) | £35,000–£56,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission in County Londonderry?
In Northern Ireland the Planning (General Permitted Development) Order (Northern Ireland) 2015 allows a single-storey rear extension of up to 3 metres on an attached house or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary. Building control approval from the council is still required.
Conservation areas, Areas of Outstanding Natural Beauty and listed buildings restrict permitted development in Northern Ireland.
Where in County Londonderry 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 County Londonderry?
We cover 5 towns and districts in County Londonderry, including Derry~Londonderry, Coleraine and Limavady.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.