Two-storey extensions in Helensburgh
We design, get approval for and build two-storey extensions in Helensburgh and the surrounding area. Choose the type of extension below or book a free site visit.
Helensburgh at a glance
- Postcode districts
- G84
- Area
- Argyll and Bute, Scotland
- Price region
- Scotland
- Nearest towns
- Greenock (4.2 miles), Gourock (4.7 miles), Port Glasgow (5.1 miles), Alexandria (5.5 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.
Around Helensburgh we also work in Greenock, Gourock and Port Glasgow, and across the rest of Argyll and Bute. Postcode district in and near Helensburgh: G84.
Extensions available in Helensburgh
Two-storey rear extensions
Our Scotland guide starts at £52,500 for this type.
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Two-storey side extensions
Helensburgh guide price from £81,000, Standard spec.
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Two-storey wraparound extensions
For homes in Helensburgh: typical guide from £113,000.
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Part single, part two-storey extensions
For homes in Helensburgh: typical guide from £67,500.
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Extensions over a garage
Design, approvals and build for Helensburgh homes. Guide from £29,500.
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First-floor extensions
Guide from £23,500 in Helensburgh, including VAT.
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Two-storey extensions for semi-detached houses
From £52,500 in Helensburgh. Free visit to firm it up.
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Two-storey extensions for detached houses
Guide from £81,000 in Helensburgh, including VAT.
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Kitchen extensions with bedrooms above
Design, approvals and build for Helensburgh homes. Guide from £52,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Our Scotland guide starts at £52,500 (plus en-suite) for this type.
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 Argyll and Bute
- 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 Helensburgh
Helensburgh 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 Helensburgh
Do you cover Helensburgh?
Yes. We cover Helensburgh (G84) and the surrounding area, including Greenock and Gourock. The first site visit is free.
What does a two-storey extension cost in Helensburgh?
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 Helensburgh do you cover?
Everywhere around it, including Greenock (4.2 miles), Gourock (4.7 miles) and Port Glasgow (5.1 miles), and the rest of Argyll and Bute.