Two-storey extensions in Largs
Need more room in Largs? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Largs at a glance
- Postcode districts
- KA28, KA29, KA30 and PA17
- Area
- Ayrshire, Scotland
- Price region
- Scotland
- Nearest towns
- Kilbirnie (7.5 miles), Rothesay (8 miles), Dalry (8.1 miles), Beith (9.4 miles)
- Distance to Kilmarnock
- about 19.2 miles
- Approvals
- Class 1B: two-storey extensions must be at least 10 m from every boundary to avoid planning permission, so most need an application.
We cover Largs (KA28, KA29, KA30 and PA17) and the places around it, including Kilbirnie (7.5 miles), Rothesay (8.0 miles) and Dalry.
Extensions available in Largs

Two-storey rear extensions
Design, approvals and build for Largs homes. Guide from £52,500.
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Two-storey side extensions
Largs guide price from £81,000, Standard spec.
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Two-storey wraparound extensions
Design, approvals and build for Largs homes. Guide from £113,000.
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Part single, part two-storey extensions
Largs guide price from £67,500, Standard spec.
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Extensions over a garage
For homes in Largs: typical guide from £29,500.
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First-floor extensions
Design, approvals and build for Largs homes. Guide from £23,500.
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Two-storey extensions for semi-detached houses
Our Scotland guide starts at £52,500 for this type.
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Two-storey extensions for detached houses
Our Scotland guide starts at £81,000 for this type.
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Kitchen extensions with bedrooms above
Guide from £52,500 (before kitchen units) in Largs, including VAT.
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Extra bedroom and en-suite extensions
Largs guide price from £52,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Largs, with a rough idea of the approval route and cost for each.
Also available in Ayrshire
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Design and build two-storey extensions
Rules for Largs
Largs is in Scotland. Class 1B: two-storey extensions must be at least 10 m from every boundary to avoid planning permission, so most need an application. Householder planning application: £371. Councils have two months to decide a local planning application.
The full Scotland rules explained
Questions about extensions in Largs
Do you cover Largs?
Yes. We cover Largs (KA28, KA29, KA30 and PA17) and the surrounding area, including Kilbirnie and Rothesay. The first site visit is free.
What does a two-storey extension cost in Largs?
Using our Scotland guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £52,500–£71,000 including VAT. An extension over a garage is about £29,500–£43,000.
Which other places near Largs do you cover?
Everywhere around it, including Kilbirnie (7.5 miles), Rothesay (8 miles) and Dalry (8.1 miles), and the rest of Ayrshire.