Ayrshire
Glazed and glass-box rear extensions in Ayrshire
Full-height glass, slim frames and big rooflights for the most open rear room. Rear extensions in Ayrshire: we cover 9 towns including Kilmarnock, Ayr and Irvine, with design, approvals and the build under one contract.

A wide sliding door with one long rooflight, rather than a fully glazed roof, keeps a glass-led extension usable in summer. Post-war semis and terraces are common around Ayrshire, and many have room for a single-storey rear extension within Class 1A limits.
How much does a glazed rear extension cost in Ayrshire?
A glazed rear extension in Ayrshire is priced at £2,660–£4,560 per square metre including VAT as a guide, before kitchen fit-out and fees. Prices in Scotland sit a little below our West Midlands baseline; building warrant fees and drawings are budgeted separately.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £32,000–£54,500 |
| 4 m wide × 6 m deep (24 m²) | £64,000–£109,500 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission in Ayrshire?
Scottish householder permitted development (Class 1A) covers many single-storey rear extensions, with a 3 metre eaves limit, a 4 metre height limit and, within 1 metre of a boundary, a depth limit of 3 metres for terraced houses or 4 metres for others. Conservation areas are excluded, and you need a building warrant whatever the planning position.
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 Ayrshire do we work?
FAQ
Questions people ask
Will a glass extension be too hot?
Not if it is designed for its orientation, with solar-control glass, shading and ventilation.
Sliding or bifold doors?
Sliders give bigger panes and slimmer sightlines; bifolds open the whole width. Our guide compares them.
Can I have a level threshold?
Yes, with a drainage channel outside the doors and the slab set to the patio level.
Do you cover all of Ayrshire?
We cover 9 towns and districts in Ayrshire, including Kilmarnock, Ayr and Irvine.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.