Limavady, County Londonderry
Single-storey rear extension in Limavady
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. We design, get the approvals for and build single-storey rear extensions in Limavady and the surrounding area, with one contract from the first survey to building control sign-off.
Limavady and its postcode districts BT49 are part of our County Londonderry coverage. On semis and detached houses like those around Limavady, a single-storey rear extension is usually the simplest way to fix a small back kitchen without touching the bedrooms.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a single-storey rear extension cost in Limavady?
For Limavady we work from the Northern Ireland rate: £1,650–£2,700 per square metre of new floor, including VAT, standard specification. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £20,000–£32,500 |
| 4 m wide × 5 m deep (20 m²) | £33,000–£54,000 |
| 4 m wide × 6 m deep (24 m²) | £39,500–£64,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a single-storey rear extension in Limavady?
Here is how the rules in Northern Ireland apply to a single-storey rear extension in Limavady.
Northern Ireland's permitted development rules allow a single-storey rear extension of 3 metres on terraced and semi-detached houses and 4 metres on detached houses, with a 4 metre height limit. Listed buildings, conservation areas and houses with removed rights need planning permission from the council.
Northern Ireland has no larger-extension prior approval route; anything beyond permitted development needs a planning application.
Conservation areas, Areas of Outstanding Natural Beauty and listed buildings restrict permitted development in Northern Ireland. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Limavady like to extend?
Semis and detached houses are typical of Limavady, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a single-storey rear extension in Limavady comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check or planning application, then building control drawings to the Northern Ireland Technical Booklets and structural calculations, plus a written agreement with neighbours for any shared-wall work.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Single-storey rear extensions near Limavady
Close by, we work in Coleraine, about 12.6 miles away, and Portstewart, about 13.0 miles away.
- Single-storey rear extension in Coleraine
- Single-storey rear extension in Portstewart
- Single-storey rear extension in Derry~Londonderry
- Single-storey rear extension in Magherafelt
- Single-storey rear extension in Strabane
Other work in Limavady:
FAQ
Single-storey rear extension questions in Limavady
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
What postcode areas do you cover around Limavady?
Including BT49, and the surrounding County Londonderry area.
Will the extension make the room behind it dark?
Not if it is designed well. Rooflights or a lantern over the old back room, and a wide opening into it, keep daylight reaching the middle of the house.
How much does a single-storey rear extension cost in Limavady?
As a guide, £1,650–£2,700 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £20,000–£32,500 at that rate. Your written price follows the survey.
Do I need planning permission for a rear extension in Limavady?
Often not for a single-storey rear extension of up to 3 metres (4 metres detached) under Northern Ireland's permitted development rules, outside conservation areas.
Do you handle building control in Limavady?
Yes. We apply to the council's building control team and hand over the completion certificate.