Two-storey extensions in Carryduff
Planning a bigger home in Carryduff? Compare extension types and guide prices below, then book a free site visit.
Carryduff at a glance
- Postcode districts
- BT8
- Area
- County Down, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Castlereagh (3.8 miles), Belfast (5.7 miles), Lisburn (6 miles), Comber (6.1 miles)
- Distance to Bangor (County Down)
- about 13.2 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 BT8 in and around Carryduff, along with neighbouring Castlereagh, Belfast and Lisburn.
Extensions available in Carryduff
Two-storey rear extensions
Guide from £49,500 in Carryduff, including VAT.
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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
Carryduff guide price from £106,000, Standard spec.
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Part single, part two-storey extensions
Design, approvals and build for Carryduff homes. Guide from £63,500.
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Extensions over a garage
Our Northern Ireland guide starts at £27,500 for this type.
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First-floor extensions
Guide from £22,000 in Carryduff, including VAT.
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Two-storey extensions for semi-detached houses
Carryduff guide price from £49,500, Standard spec.
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Two-storey extensions for detached houses
For homes in Carryduff: typical 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
Design, approvals and build for Carryduff homes. Guide from £49,500 (plus en-suite).
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in County Down, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Carryduff
Carryduff 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 Carryduff
Do you cover Carryduff?
Yes. We cover Carryduff (BT8) and the surrounding area, including Castlereagh and Belfast. The first site visit is free.
What does a two-storey extension cost in Carryduff?
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 Carryduff do you cover?
Everywhere around it, including Castlereagh (3.8 miles), Belfast (5.7 miles) and Lisburn (6 miles), and the rest of County Down.