County Armagh
Rear extensions for detached houses in County Armagh
Wider, deeper rear extensions with room for vaulted roofs and big glazing. Rear extensions in County Armagh: we cover 3 towns including Craigavon, Portadown and Armagh, with design, approvals and the build under one contract.
Semis and detached houses are typical of County Armagh, and many have room for a rear extension within Northern Ireland's permitted development limits.
How much does a detached house rear extension cost in County Armagh?
For County Armagh we work from the Northern Ireland rate: £1,700–£2,780 per square metre of new floor, including VAT, standard specification. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 4 m wide × 6 m deep (24 m²) | £40,500–£67,000 |
| 5 m wide × 8 m deep (40 m²) | £68,000–£111,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission in County Armagh?
In Northern Ireland the Planning (General Permitted Development) Order (Northern Ireland) 2015 allows a single-storey rear extension of up to 3 metres on an attached house or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary. Building control approval from the council is still required.
Northern Ireland has no larger-extension prior approval route; anything beyond permitted development needs a planning application.
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.
Where in County Armagh do we work?
FAQ
Questions people ask
Can I have a vaulted ceiling?
Yes, with a pitched roof and exposed or boxed rafters, subject to the height limits.
Is an oak frame worth it?
It is a premium finish with a long life; it costs more than blockwork with a plain roof.
Does a big extension need more heating?
Usually yes. We size underfloor heating or new radiators to the room.
Do you cover all of County Armagh?
We cover 3 towns and districts in County Armagh, including Craigavon, Portadown and Armagh.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.