Magherafelt, County Londonderry
Two-storey rear extension in Magherafelt
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Magherafelt and want to know what a two-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Magherafelt (BT45) as part of our County Londonderry work. In Magherafelt, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted.
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 two-storey rear extension cost in Magherafelt?
In Magherafelt, our guide for a two-storey rear extension is £1,570–£2,350 per square metre including VAT for a standard specification. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £47,000–£70,500 |
| 4 m × 6 m footprint, two floors (48 m²) | £75,000–£113,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a two-storey rear extension in Magherafelt?
Whether your two-storey rear extension in Magherafelt needs a planning application depends on its size, your house and any local restrictions.
In Northern Ireland a rear extension of more than one storey can be permitted development if it projects no more than 3 metres and stays at least 7 metres from the rear boundary. Two-storey extensions in conservation areas, and most larger schemes, need planning permission from the council.
Conservation areas, Areas of Outstanding Natural Beauty and listed buildings restrict permitted development in Northern Ireland. At the first visit we measure what is there now and tell you which route fits: permitted development or a planning application.
What are homes in Magherafelt like to extend?
Semis and detached houses are typical of Magherafelt, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a two-storey rear extension in Magherafelt comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Two-storey rear extensions near Magherafelt
Close by, we work in Cookstown, about 9.4 miles away, and Coalisland, about 15.1 miles away.
- Two-storey rear extension in Cookstown
- Two-storey rear extension in Coalisland
- Two-storey rear extension in Ballymena
- Two-storey rear extension in Antrim
- Two-storey rear extension in Dungannon
Other work in Magherafelt:
FAQ
Two-storey rear extension questions in Magherafelt
What postcode areas do you cover around Magherafelt?
Including BT45, and the surrounding County Londonderry area.
How long does a rear extension take to build in Magherafelt?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
What is the 45-degree rule?
Many councils check that a two-storey extension does not cross a 45-degree line drawn from the nearest habitable window of the neighbouring house. We test it at the first drawing.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Can you match the brick or stone on my Magherafelt house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do I need a party wall agreement?
Northern Ireland has no Party Wall Act; we agree any shared-wall work with your neighbour in writing.