Two-storey extensions in Crumlin (County Antrim)
Planning a bigger home in Crumlin (County Antrim)? Compare extension types and guide prices below, then book a free site visit.
Crumlin (County Antrim) at a glance
- Postcode districts
- BT29
- Area
- County Antrim, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Antrim (6.7 miles), Randalstown (9.6 miles), Moira (9.7 miles), Lisburn (9.8 miles)
- Distance to Belfast
- about 11.7 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.
We cover Crumlin (County Antrim) (BT29) and the places around it, including Antrim (6.7 miles), Randalstown (9.6 miles) and Moira.
Extensions available in Crumlin (County Antrim)
Two-storey rear extensions
Crumlin (County Antrim) guide price from £49,500, Standard spec.
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Two-storey side extensions
From £76,000 in Crumlin (County Antrim). Free visit to firm it up.
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Two-storey wraparound extensions
From £106,000 in Crumlin (County Antrim). Free visit to firm it up.
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Part single, part two-storey extensions
Design, approvals and build for Crumlin (County Antrim) homes. Guide from £63,500.
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Extensions over a garage
For homes in Crumlin (County Antrim): typical guide from £27,500.
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First-floor extensions
For homes in Crumlin (County Antrim): typical guide from £22,000.
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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
Design, approvals and build for Crumlin (County Antrim) homes. Guide from £76,000.
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Kitchen extensions with bedrooms above
From £49,500 (before kitchen units) in Crumlin (County Antrim). Free visit to firm it up.
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Extra bedroom and en-suite extensions
For homes in Crumlin (County Antrim): typical guide from £49,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Crumlin (County Antrim) 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 Crumlin (County Antrim)
Crumlin (County Antrim) 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 Crumlin (County Antrim)
Do you cover Crumlin (County Antrim)?
Yes. We cover Crumlin (County Antrim) (BT29) and the surrounding area, including Antrim and Randalstown. The first site visit is free.
What does a two-storey extension cost in Crumlin (County Antrim)?
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 Crumlin (County Antrim) do you cover?
Everywhere around it, including Antrim (6.7 miles), Randalstown (9.6 miles) and Moira (9.7 miles), and the rest of County Antrim.