Two-storey extensions in Dundonald
Homeowners in Dundonald can use us for the whole project or just the drawings and approvals. Start with a free visit.
Dundonald at a glance
- Postcode districts
- BT16
- Area
- County Down, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Holywood (3.4 miles), Comber (3.7 miles), Castlereagh (3.7 miles), Newtownards (4.3 miles)
- Distance to Bangor (County Down)
- about 7 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.
Dundonald sits about 7.0 miles from Bangor (County Down). Closer to home, Holywood is 3.4 miles away and Comber 3.7 miles.
Extensions available in Dundonald
Two-storey rear extensions
Guide from £49,500 in Dundonald, including VAT.
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Two-storey side extensions
Design, approvals and build for Dundonald homes. Guide from £76,000.
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Two-storey wraparound extensions
Dundonald guide price from £106,000, Standard spec.
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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 Dundonald homes. Guide from £27,500.
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First-floor extensions
Guide from £22,000 in Dundonald, including VAT.
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Two-storey extensions for semi-detached houses
For homes in Dundonald: typical guide from £49,500.
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Two-storey extensions for detached houses
Design, approvals and build for Dundonald homes. Guide from £76,000.
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Kitchen extensions with bedrooms above
Our Northern Ireland guide starts at £49,500 (before kitchen units) for this type.
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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?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in County Down
- 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 Dundonald
Dundonald 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 Dundonald
Do you cover Dundonald?
Yes. We cover Dundonald (BT16) and the surrounding area, including Holywood and Comber. The first site visit is free.
What does a two-storey extension cost in Dundonald?
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 Dundonald do you cover?
Everywhere around it, including Holywood (3.4 miles), Comber (3.7 miles) and Castlereagh (3.7 miles), and the rest of County Down.