Two-storey extensions in Larne
Planning a bigger home in Larne? Compare extension types and guide prices below, then book a free site visit.
Larne at a glance
- Postcode districts
- BT40
- Area
- County Antrim, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Carrickfergus (9.3 miles), Ballyclare (10 miles), Greenisland (10.6 miles), Jordanstown (12 miles)
- Distance to Belfast
- about 18 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Most others need planning permission.
We cover Larne (BT40) and the places around it, including Carrickfergus (9.3 miles), Ballyclare (10.0 miles) and Greenisland.
Extensions available in Larne
Two-storey rear extensions
Our Northern Ireland guide starts at £49,500 for this type.
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Two-storey side extensions
From £76,000 in Larne. Free visit to firm it up.
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Two-storey wraparound extensions
Guide from £106,000 in Larne, including VAT.
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Part single, part two-storey extensions
Larne guide price from £63,500, Standard spec.
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Extensions over a garage
For homes in Larne: typical guide from £27,500.
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First-floor extensions
For homes in Larne: typical guide from £22,000.
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Two-storey extensions for semi-detached houses
From £49,500 in Larne. Free visit to firm it up.
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Two-storey extensions for detached houses
Our Northern Ireland guide starts at £76,000 for this type.
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Kitchen extensions with bedrooms above
Larne guide price from £49,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
From £49,500 (plus en-suite) in Larne. Free visit to firm it up.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Larne we measure distances to every boundary before suggesting a type.
Also available in County Antrim
- 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 Larne
Larne is in Northern Ireland. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Most others need planning permission. Planning application for works to a house: £347. Councils aim to decide local applications within an average of 15 weeks; many take longer.
The full Northern Ireland rules explained
Questions about extensions in Larne
Do you cover Larne?
Yes. We cover Larne (BT40) and the surrounding area, including Carrickfergus and Ballyclare. The first site visit is free.
What does a two-storey extension cost in Larne?
Using our Northern Ireland 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 £49,500–£66,500 including VAT. An extension over a garage is about £27,500–£40,500.
Which other places near Larne do you cover?
Everywhere around it, including Carrickfergus (9.3 miles), Ballyclare (10 miles) and Greenisland (10.6 miles), and the rest of County Antrim.