Craigavon, County Armagh
Two-storey rear extension in Craigavon
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Craigavon 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 Craigavon (BT64, BT65 and BT66) as part of our County Armagh work. In County Armagh we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning.
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 Craigavon?
Guide prices for a two-storey rear extension in Craigavon start from our Northern Ireland rate of £1,570–£2,350 per square metre, including VAT. 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a two-storey rear extension in Craigavon?
Here is how the rules in Northern Ireland apply to a two-storey rear extension in Craigavon.
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. 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 Craigavon like to extend?
Semis and detached houses are typical of Craigavon, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a two-storey rear extension in Craigavon 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for council building control.
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 Craigavon
Close by, we work in Portadown, about 2.8 miles away, and Banbridge, about 7.9 miles away.
- Two-storey rear extension in Portadown
- Two-storey rear extension in Banbridge
- Two-storey rear extension in Armagh
- Two-storey rear extension in Coalisland
- Two-storey rear extension in Lisburn
Other work in Craigavon:
FAQ
Two-storey rear extension questions in Craigavon
How long does a rear extension take to build in Craigavon?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Is two-storey cheaper per square metre than single-storey?
Usually yes, because the foundations and roof are shared across twice the floor area. The total cost is higher.
Can you match the brick or stone on my Craigavon 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 planning permission for a rear extension in Craigavon?
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.
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.