Perth and Kinross
Two-storey rear extensions in Perth and Kinross
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. Rear extensions in Perth and Kinross: we cover 5 towns including Perth, Blairgowrie and Rattray and Crieff, with design, approvals and the build under one contract.
Two-storey rear extensions suit semi-detached houses in Perth best, where the extra bedroom matters as much as the bigger kitchen. Post-war semis and terraces are common around Perth and Kinross, and many have room for a single-storey rear extension within Class 1A limits.
How much does a two-storey rear extension cost in Perth and Kinross?
In Perth and Kinross, our guide for a two-storey rear extension is £1,710–£2,560 per square metre including VAT for a 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 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission in Perth and Kinross?
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 Perth and Kinross 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 Perth and Kinross?
We cover 5 towns and districts in Perth and Kinross, including Perth, Blairgowrie and Rattray and Crieff.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.