Two-storey extensions in Newtownabbey
We design, get approval for and build two-storey extensions in Newtownabbey and the surrounding area. Choose the type of extension below or book a free site visit.
Newtownabbey at a glance
- Postcode districts
- BT36
- Area
- County Antrim, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Jordanstown (1.7 miles), Greenisland (3.1 miles), Holywood (3.7 miles), Belfast (4.4 miles)
- Distance to Belfast
- about 4.4 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 Newtownabbey (BT36) and the places around it, including Jordanstown (1.7 miles), Greenisland (3.1 miles) and Holywood.
Extensions available in Newtownabbey
Two-storey rear extensions
Newtownabbey guide price from £49,500, Standard spec.
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Two-storey side extensions
Our Northern Ireland guide starts at £76,000 for this type.
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Two-storey wraparound extensions
Design, approvals and build for Newtownabbey homes. Guide from £106,000.
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Part single, part two-storey extensions
Our Northern Ireland guide starts at £63,500 for this type.
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Extensions over a garage
Design, approvals and build for Newtownabbey homes. Guide from £27,500.
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First-floor extensions
From £22,000 in Newtownabbey. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Our Northern Ireland guide starts at £49,500 for this type.
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Two-storey extensions for detached houses
From £76,000 in Newtownabbey. Free visit to firm it up.
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Kitchen extensions with bedrooms above
From £49,500 (before kitchen units) in Newtownabbey. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Newtownabbey guide price from £49,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Which type suits your house in Newtownabbey 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 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 Newtownabbey
Newtownabbey 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 Newtownabbey
Do you cover Newtownabbey?
Yes. We cover Newtownabbey (BT36) and the surrounding area, including Jordanstown and Greenisland. The first site visit is free.
What does a two-storey extension cost in Newtownabbey?
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 Newtownabbey do you cover?
Everywhere around it, including Jordanstown (1.7 miles), Greenisland (3.1 miles) and Holywood (3.7 miles), and the rest of County Antrim.