Two-storey extensions in Ballynahinch
Homeowners in Ballynahinch can use us for the whole project or just the drawings and approvals. Start with a free visit.
Ballynahinch at a glance
- Postcode districts
- BT24
- Area
- County Down, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Carryduff (8 miles), Downpatrick (8.9 miles), Lisburn (10 miles), Dromore (County Down) (10.2 miles)
- Distance to Bangor (County Down)
- about 20.1 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 Ballynahinch (BT24) and the places around it, including Carryduff (8.0 miles), Downpatrick (8.9 miles) and Lisburn.
Extensions available in Ballynahinch
Two-storey rear extensions
For homes in Ballynahinch: typical guide from £49,500.
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Two-storey side extensions
For homes in Ballynahinch: typical guide from £76,000.
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Two-storey wraparound extensions
Our Northern Ireland guide starts at £106,000 for this type.
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Part single, part two-storey extensions
Design, approvals and build for Ballynahinch homes. Guide from £63,500.
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Extensions over a garage
From £27,500 in Ballynahinch. Free visit to firm it up.
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First-floor extensions
Guide from £22,000 in Ballynahinch, including VAT.
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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
Ballynahinch guide price from £76,000, Standard spec.
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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
Ballynahinch guide price from £49,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Which type suits your house in Ballynahinch 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 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 Ballynahinch
Ballynahinch 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 Ballynahinch
Do you cover Ballynahinch?
Yes. We cover Ballynahinch (BT24) and the surrounding area, including Carryduff and Downpatrick. The first site visit is free.
What does a two-storey extension cost in Ballynahinch?
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 Ballynahinch do you cover?
Everywhere around it, including Carryduff (8 miles), Downpatrick (8.9 miles) and Lisburn (10 miles), and the rest of County Down.