Ballymena, County Antrim
Terraced house rear extension in Ballymena
Terraced house rear extension in Ballymena: rear and side return extensions for terraces, with access through the house and two neighbours. We measure the house, show you what the rules allow, price it in writing and build it.
Ballymena is covered from our County Antrim round, including BT42 and BT43. Terraced streets make up much of the housing in parts of County Antrim, and most rear extensions here go in without side access.
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 terraced house rear extension cost in Ballymena?
For Ballymena we work from the Northern Ireland rate: £1,780–£2,870 per square metre of new floor, including VAT, standard specification. 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 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a terraced house rear extension in Ballymena?
The planning route for a terraced house rear extension in Ballymena is set by Northern Ireland's householder rules and your council.
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 Party Wall Act. Shared-wall work relies on agreement with your neighbour and the general law, so we put access and protection arrangements in writing before starting.
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 Ballymena like to extend?
Ballymena 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 a terraced house rear extension in Ballymena comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Paperwork handled
Planning or permitted development, building control approval, structural design and neighbour agreements are all handled by us.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Terraced house rear extensions near Ballymena
Neighbouring places we cover include Antrim (10.4 miles) and Magherafelt (15.2 miles).
- Terraced house rear extension in Antrim
- Terraced house rear extension in Magherafelt
- Terraced house rear extension in Larne
- Terraced house rear extension in Newtownabbey
- Terraced house rear extension in Carrickfergus
Other work in Ballymena:
FAQ
Terraced house rear extension questions in Ballymena
What postcode areas do you cover around Ballymena?
Including BT42 and BT43, and the surrounding County Antrim area.
Do I need planning permission for a rear extension in Ballymena?
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.
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 I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Is the site visit in Ballymena free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How much does a terraced house rear extension cost in Ballymena?
As a guide, £1,780–£2,870 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £24,000–£39,000 at that rate. Your written price follows the survey.