County Londonderry
Building Regulations for rear extensions in County Londonderry
Construction drawings, structural calculations and building control through to the completion certificate. 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.
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.
What does it cost in County Londonderry?
As a guide, £2,500–£5,500 including VAT. Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
What approvals does it need in County Londonderry?
Northern Ireland's building regulations are administered by council building control teams, who approve the plans or a building notice and inspect the work through to completion.
Insulation and glazing follow Technical Booklet F1 in Northern Ireland, checked by council building control.
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
What is a completion certificate?
The document confirming the work meets the regulations. Keep it; buyers' solicitors ask for it.
Do I need regs if I don't need planning?
Yes.
What stages are inspected?
Typically foundations, damp proofing, drainage, steelwork, insulation and completion.
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.