County Londonderry
Rear extensions for terraced houses in County Londonderry
Rear and side return extensions for terraces, with access through the house and two neighbours. We design and build rear extensions across County Londonderry, from Derry~Londonderry and Coleraine to Limavady, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.
In Derry~Londonderry we plan the delivery route through the house and the skip licence before anything else. Semis and detached houses are typical of County Londonderry, and many have room for a rear extension within Northern Ireland's permitted development limits.
How much does a terraced house rear extension cost in County Londonderry?
A terraced house rear extension in County Londonderry is priced at £1,780–£2,870 per square metre including VAT as a guide, before kitchen fit-out and fees. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £24,000–£39,000 |
| 3 m wide × 6 m deep (18 m²) | £32,000–£51,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission in County Londonderry?
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.
There is no Party Wall Act in Northern Ireland; we agree any work affecting a shared wall or boundary directly with the neighbour, in writing.
Conservation areas, Areas of Outstanding Natural Beauty and listed buildings restrict permitted development in Northern Ireland.
Where in County Londonderry do we work?
FAQ
Questions people ask
Can you build without side access?
Yes. Materials come through the house in protected runs or over the roof by crane on tight sites.
Will my terrace be in a conservation area?
Many Victorian terraces are. Your council's map shows it; we check at the survey.
Can a terrace have a two-storey rear extension?
It is possible but harder to get through planning because of the effect on both neighbours.
Do you cover all of County Londonderry?
We cover 5 towns and districts in County Londonderry, including Derry~Londonderry, Coleraine and Limavady.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.