Two-storey extensions in Portstewart
Everything for a two-storey extension in Portstewart, in one place: types, guide prices for Northern Ireland, the approval rules in Northern Ireland and how to get started.
Portstewart at a glance
- Postcode districts
- BT55
- Area
- County Londonderry, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Portrush (2.7 miles), Coleraine (3.8 miles), Ballymoney (11.1 miles), Limavady (13 miles)
- Distance to Derry
- about 26.8 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 Portstewart (BT55) and the places around it, including Portrush (2.7 miles), Coleraine (3.8 miles) and Ballymoney.
Extensions available in Portstewart
Two-storey rear extensions
Design, approvals and build for Portstewart homes. Guide from £49,500.
Learn more
Two-storey side extensions
For homes in Portstewart: typical guide from £76,000.
Learn more
Two-storey wraparound extensions
Guide from £106,000 in Portstewart, including VAT.
Learn more
Part single, part two-storey extensions
Design, approvals and build for Portstewart homes. Guide from £63,500.
Learn more
Extensions over a garage
Our Northern Ireland guide starts at £27,500 for this type.
Learn more
First-floor extensions
From £22,000 in Portstewart. Free visit to firm it up.
Learn more
Two-storey extensions for semi-detached houses
Portstewart guide price from £49,500, Standard spec.
Learn more
Two-storey extensions for detached houses
Guide from £76,000 in Portstewart, including VAT.
Learn more
Kitchen extensions with bedrooms above
For homes in Portstewart: typical guide from £49,500 (before kitchen units).
Learn more
Extra bedroom and en-suite extensions
From £49,500 (plus en-suite) in Portstewart. Free visit to firm it up.
Learn moreWhich type suits your house?
Which type suits your house in Portstewart 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 Londonderry
- 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 Portstewart
Portstewart 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 Portstewart
Do you cover Portstewart?
Yes. We cover Portstewart (BT55) and the surrounding area, including Portrush and Coleraine. The first site visit is free.
What does a two-storey extension cost in Portstewart?
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 Portstewart do you cover?
Everywhere around it, including Portrush (2.7 miles), Coleraine (3.8 miles) and Ballymoney (11.1 miles), and the rest of County Londonderry.