Scottish Borders
Two-storey rear extensions in the Scottish Borders
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. Across the Scottish Borders we handle the whole rear extension: survey, drawings, the planning route, building control and the build. Towns we cover here include Hawick, Galashiels and Peebles.

In Hawick, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted. Scottish Borders has sandstone villas and terraces, post-war semis and four-in-a-block flats. Flats need planning permission for an extension, and every project needs a building warrant before work starts.
How much does a two-storey rear extension cost in the Scottish Borders?
Guide prices for a two-storey rear extension in the Scottish Borders start from our Scotland rate of £1,710–£2,560 per square metre, including VAT. 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 × 5 m footprint, two floors (30 m²) | £51,500–£77,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £82,000–£123,000 |
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 the Scottish Borders?
Scottish Class 1B rights for extensions of more than one storey need a 10 metre gap to every boundary, which few gardens have. Expect a planning application as well as a building warrant for a double-storey rear extension.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent.
Where in the Scottish Borders do we work?
FAQ
Questions people ask
Does a two-storey rear extension need planning permission?
Almost always. England and Northern Ireland allow 3 metres without an application only if at least 7 metres remains to the rear boundary; Wales and Scotland are similar or stricter.
Is two-storey cheaper per square metre than single-storey?
Usually yes, because the foundations and roof are shared across twice the floor area. The total cost is higher.
Can I add an en-suite upstairs?
Yes. We plan the soil pipe route early so the bathroom sits where drainage works without boxing through the room below.
Do you cover all of the Scottish Borders?
We cover 5 towns and districts in the Scottish Borders, including Hawick, Galashiels and Peebles.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.