Two-storey extensions in Portlethen
Planning a bigger home in Portlethen? Compare extension types and guide prices below, then book a free site visit.
Portlethen at a glance
- Postcode districts
- AB12
- Area
- Aberdeen and Aberdeenshire, Scotland
- Price region
- Scotland
- Nearest towns
- Cove (2.8 miles), Nigg (3.6 miles), Aberdeen (5.3 miles), Stonehaven (7.9 miles)
- Distance to Aberdeen
- about 5.3 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 postcode district AB12 in and around Portlethen, along with neighbouring Cove, Nigg and Aberdeen.
Extensions available in Portlethen

Two-storey rear extensions
Portlethen guide price from £52,500, Standard spec.
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Two-storey side extensions
Portlethen guide price from £81,000, Standard spec.
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Two-storey wraparound extensions
Guide from £113,000 in Portlethen, including VAT.
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Part single, part two-storey extensions
Portlethen guide price from £67,500, Standard spec.
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Extensions over a garage
For homes in Portlethen: typical guide from £29,500.
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First-floor extensions
Our Scotland guide starts at £23,500 for this type.
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Two-storey extensions for semi-detached houses
For homes in Portlethen: typical guide from £52,500.
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Two-storey extensions for detached houses
From £81,000 in Portlethen. Free visit to firm it up.
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Kitchen extensions with bedrooms above
For homes in Portlethen: typical guide from £52,500 (before kitchen units).
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Extra bedroom and en-suite extensions
For homes in Portlethen: typical guide from £52,500 (plus en-suite).
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in Aberdeen and Aberdeenshire
- 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 Portlethen
Portlethen 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 Portlethen
Do you cover Portlethen?
Yes. We cover Portlethen (AB12) and the surrounding area, including Cove and Nigg. The first site visit is free.
What does a two-storey extension cost in Portlethen?
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 Portlethen do you cover?
Everywhere around it, including Cove (2.8 miles), Nigg (3.6 miles) and Aberdeen (5.3 miles), and the rest of Aberdeen and Aberdeenshire.