Two-storey extensions in Portrush
Homeowners in Portrush can use us for the whole project or just the drawings and approvals. Start with a free visit.
Portrush at a glance
- Postcode districts
- BT56
- Area
- County Londonderry, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Portstewart (2.7 miles), Coleraine (4.4 miles), Ballymoney (10.2 miles), Limavady (15.6 miles)
- Distance to Derry
- about 29.5 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 postcode district BT56 in and around Portrush, along with neighbouring Portstewart, Coleraine and Ballymoney.
Extensions available in Portrush
Two-storey rear extensions
From £49,500 in Portrush. Free visit to firm it up.
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Two-storey side extensions
For homes in Portrush: typical guide from £76,000.
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Two-storey wraparound extensions
Guide from £106,000 in Portrush, including VAT.
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Part single, part two-storey extensions
Portrush guide price from £63,500, Standard spec.
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Extensions over a garage
From £27,500 in Portrush. Free visit to firm it up.
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First-floor extensions
From £22,000 in Portrush. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
From £49,500 in Portrush. Free visit to firm it up.
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Two-storey extensions for detached houses
Guide from £76,000 in Portrush, including VAT.
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Kitchen extensions with bedrooms above
Design, approvals and build for Portrush homes. Guide from £49,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Our Northern Ireland guide starts at £49,500 (plus en-suite) for this type.
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 Portrush we measure distances to every boundary before suggesting a type.
Also available in County Londonderry
- 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 Portrush
Portrush 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 Portrush
Do you cover Portrush?
Yes. We cover Portrush (BT56) and the surrounding area, including Portstewart and Coleraine. The first site visit is free.
What does a two-storey extension cost in Portrush?
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 Portrush do you cover?
Everywhere around it, including Portstewart (2.7 miles), Coleraine (4.4 miles) and Ballymoney (10.2 miles), and the rest of County Londonderry.