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County Antrim

Rear extensions for terraced houses in County Antrim

Rear and side return extensions for terraces, with access through the house and two neighbours. Across County Antrim we handle the whole rear extension: survey, drawings, the planning route, building control and the build. Towns we cover here include Belfast, Lisburn and Newtownabbey.

Backs of a row of Victorian terraced houses with single-storey rear extensions and roof lanterns

In Belfast we plan the delivery route through the house and the skip licence before anything else. County Antrim has terraces near the centre, semis on the edges and many detached houses and bungalows in the surrounding countryside, where plots are often generous.

How much does a terraced house rear extension cost in County Antrim?

Guide prices for a terraced house rear extension in County Antrim start from our Northern Ireland rate of £1,780–£2,870 per square metre, including VAT. Northern Ireland prices are the lowest in our range.

Terraced house rear extension guide prices in County Antrim
SizeGuide 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

Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.

Do you need planning permission in County Antrim?

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 Antrim 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 Antrim?

We cover 7 towns and districts in County Antrim, including Belfast, Lisburn and Newtownabbey.

Who builds the extension?

Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

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