Falkirk, Stirling and Clackmannanshire · Scotland

Two-storey extensions in Grangemouth

Planning a bigger home in Grangemouth? Compare extension types and guide prices below, then book a free site visit.

Grangemouth at a glance

Postcode districts
FK3
Area
Falkirk, Stirling and Clackmannanshire, Scotland
Price region
Scotland
Nearest towns
Falkirk (2.5 miles), Stenhousemuir (3.7 miles), Bo’ness (4.1 miles), Larbert (4.2 miles)
Distance to Stirling
about 11.1 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 Grangemouth we also work in Falkirk, Stenhousemuir and Bo’ness, and across the rest of Falkirk, Stirling and Clackmannanshire. Postcode district in and near Grangemouth: FK3.

Extensions available in Grangemouth

Which type suits your house?

Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Grangemouth we also design annexes, home offices and bedrooms over garages.

Also available in Falkirk, Stirling and Clackmannanshire

Rules for Grangemouth

Grangemouth 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 Grangemouth

Do you cover Grangemouth?

Yes. We cover Grangemouth (FK3) and the surrounding area, including Falkirk and Stenhousemuir. The first site visit is free.

What does a two-storey extension cost in Grangemouth?

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 Grangemouth do you cover?

Everywhere around it, including Falkirk (2.5 miles), Stenhousemuir (3.7 miles) and Bo’ness (4.1 miles), and the rest of Falkirk, Stirling and Clackmannanshire.

Nearby towns

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