Aberdeen and Aberdeenshire
Two-storey rear extensions in Aberdeen and Aberdeenshire
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We design and build rear extensions across Aberdeen and Aberdeenshire, from Aberdeen and Peterhead to Nigg, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.

In Aberdeen, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted. Post-war semis and terraces are common around Aberdeen and Aberdeenshire, and many have room for a single-storey rear extension within Class 1A limits.
How much does a two-storey rear extension cost in Aberdeen and Aberdeenshire?
For Aberdeen and Aberdeenshire we work from the Scotland rate: £1,710–£2,560 per square metre of new floor, including VAT, standard specification. 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission in Aberdeen and Aberdeenshire?
In Scotland an extension of more than one storey is only permitted development (Class 1B) if no part is within 10 metres of any boundary and it is no higher than the existing house, so almost every two-storey rear extension needs planning permission and a building warrant.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent.
Where in Aberdeen and Aberdeenshire 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 Aberdeen and Aberdeenshire?
We cover 8 towns and districts in Aberdeen and Aberdeenshire, including Aberdeen, Peterhead and Nigg.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.