Scotland
Rear extensions in Ayrshire
We design and build rear extensions across Ayrshire, from Kilmarnock and Ayr to Irvine, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.
What are homes in Ayrshire like to extend?
Post-war semis and terraces are common around Ayrshire, and many have room for a single-storey rear extension within Class 1A limits.
Rear extension prices in Ayrshire
Prices in Scotland sit a little below our West Midlands baseline; building warrant fees and drawings are budgeted separately. Per square metre including VAT, standard specification:
| Extension | Per m² |
|---|---|
| Single-storey rear extension | £1,800–£2,940 |
| Two-storey (per m² across both floors) | £1,710–£2,560 |
| Side return | £2,180–£3,610 |
| Wraparound | £2,090–£3,420 |
| Glass-led | £2,660–£4,560 |
Planning and building rules 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.
Scotland has no larger-extension prior approval route; extensions beyond permitted development need a planning application.
Scottish extensions are approved by building warrant, granted by the council's building standards team before work begins, with a completion certificate submitted when the work is finished.
There is no Party Wall Act in Scotland; neighbour matters are handled through the title deeds, common law and written agreement before work starts.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent.
Rear extensions we build in Ayrshire
- Rear extensions for terraced houses
- Rear extensions for semi-detached houses
- Rear extensions for detached houses
- Rear extensions for bungalows
- Flat-roof rear extensions
- Pitched and lean-to roof rear extensions
- Knocking through to a rear extension
- Roof lanterns and rooflights for rear extensions
- Permitted development rear extensions
- Rear extension plans and planning applications
- Building Regulations for rear extensions
- Single-storey rear extensions
- Two-storey rear extensions
- Kitchen-diner rear extensions
- Side return extensions
- Wraparound extensions
- Glazed and glass-box rear extensions
Towns and districts in Ayrshire
The main places we cover in Ayrshire include Kilmarnock, Ayr and Irvine, across postcode areas KA.
| Town | Postcode districts | Nearest town we also cover |
|---|---|---|
| Kilmarnock | KA1 | Irvine (6.2 miles) |
| Ayr | KA7, KA8, KA9 | Prestwick (1.6 miles) |
| Irvine | KA11, KA12 | Kilwinning (3.1 miles) |
| Kilwinning | KA13 | Irvine (3.1 miles) |
| Troon | KA10 | Prestwick (4.5 miles) |
| Prestwick | KA7, KA8, KA9 | Ayr (1.6 miles) |
| Saltcoats | KA20, KA21, KA22 | Ardrossan (1.3 miles) |
| Largs | KA30 | Ardrossan (10.3 miles) |
| Ardrossan | KA21, KA22 | Saltcoats (1.3 miles) |
Areas near Ayrshire
FAQ
Questions people ask
How much does a rear extension cost in Ayrshire?
As a guide, £1,800–£2,940 per square metre including VAT for a standard single-storey extension at Scotland rates.
Do I need planning permission in Ayrshire?
Many single-storey rear extensions are permitted development under Class 1A, but not in conservation areas; you always need a building warrant before work starts.
Which towns in Ayrshire do you cover?
9 towns and districts, including Kilmarnock, Ayr and Irvine.
Do you handle building control?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.