Highlands and Islands
Building Regulations for rear extensions in the Highlands and Islands
Construction drawings, structural calculations and building control through to the completion certificate. Across the Highlands and Islands we handle the whole rear extension: survey, drawings, the planning route, building control and the build. Towns we cover here include Inverness, Elgin and Nairn.

Island and remote addresses in the Highlands and Islands are by arrangement: we confirm whether we can take the job, and agree any travel costs, before the first visit.
Highlands and Islands has older stone houses, post-war homes and many detached houses and bungalows on larger plots. Wind and rain shape the design: roof pitch, cladding and glazing are chosen for the weather, and every extension needs a building warrant.
What does it cost in the Highlands and Islands?
As a guide, £2,500–£5,500 including VAT. Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
What approvals does it need in the Highlands and Islands?
In Scotland you need a building warrant from the council before any work starts, and a completion certificate accepted at the end. The design follows the Scottish Building Standards Technical Handbooks.
Insulation and glazing follow Section 6 of the Scottish Technical Handbook; the building warrant drawings show how the extension meets it.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent.
Where in the Highlands and Islands 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 the Highlands and Islands?
We cover 5 towns and districts in the Highlands and Islands, including Inverness, Elgin and Nairn. Remote and island addresses are by arrangement.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.