Two-storey extensions in Denny
Everything for a two-storey extension in Denny, in one place: types, guide prices for Scotland, the approval rules in Scotland and how to get started.
Denny at a glance
- Postcode districts
- FK4 and FK6
- Area
- Falkirk, Stirling and Clackmannanshire, Scotland
- Price region
- Scotland
- Nearest towns
- Larbert (3.1 miles), Stenhousemuir (3.6 miles), Bannockburn (4.6 miles), Falkirk (5 miles)
- Distance to Stirling
- about 6.7 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.
Denny sits about 6.7 miles from Stirling. Closer to home, Larbert is 3.1 miles away and Stenhousemuir 3.6 miles.
Extensions available in Denny

Two-storey rear extensions
Guide from £52,500 in Denny, including VAT.
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Two-storey side extensions
Our Scotland guide starts at £81,000 for this type.
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Two-storey wraparound extensions
From £113,000 in Denny. Free visit to firm it up.
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Part single, part two-storey extensions
Our Scotland guide starts at £67,500 for this type.
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Extensions over a garage
For homes in Denny: typical guide from £29,500.
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First-floor extensions
From £23,500 in Denny. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
For homes in Denny: typical guide from £52,500.
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Two-storey extensions for detached houses
Guide from £81,000 in Denny, including VAT.
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Kitchen extensions with bedrooms above
For homes in Denny: typical 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?
Which type suits your house in Denny depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
Also available in Falkirk, Stirling and Clackmannanshire
- 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 Denny
Denny 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 Denny
Do you cover Denny?
Yes. We cover Denny (FK4 and FK6) and the surrounding area, including Larbert and Stenhousemuir. The first site visit is free.
What does a two-storey extension cost in Denny?
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 Denny do you cover?
Everywhere around it, including Larbert (3.1 miles), Stenhousemuir (3.6 miles) and Bannockburn (4.6 miles), and the rest of Falkirk, Stirling and Clackmannanshire.