Ballymena, County Antrim
Bungalow rear extension in Ballymena
We plan and build rear extensions for bungalows for homeowners in Ballymena. Single-storey rear extensions that keep everything on one level. Start with a free site visit, then a written price once the design is agreed.
We cover Ballymena (BT42 and BT43) as part of our County Antrim work. For bungalows in County Antrim, a rear extension is the usual way to add space without adding stairs.
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 bungalow rear extension cost in Ballymena?
Guide prices for a bungalow rear extension in Ballymena start from our Northern Ireland rate of £1,610–£2,610 per square metre, including VAT. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £19,500–£31,500 |
| 4 m wide × 6 m deep (24 m²) | £38,500–£62,500 |
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 for a bungalow rear extension in Ballymena?
Whether your bungalow rear extension in Ballymena needs a planning application depends on its size, your house and any local restrictions.
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.
Conservation areas, Areas of Outstanding Natural Beauty and listed buildings restrict permitted development in Northern Ireland. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
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 bungalow rear extension in Ballymena comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check or planning application, then building control drawings to the Northern Ireland Technical Booklets and structural calculations, plus a written agreement with neighbours for any shared-wall work.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Bungalow rear extensions near Ballymena
Neighbouring places we cover include Antrim (10.4 miles) and Magherafelt (15.2 miles).
- Bungalow rear extension in Antrim
- Bungalow rear extension in Magherafelt
- Bungalow rear extension in Larne
- Bungalow rear extension in Newtownabbey
- Bungalow rear extension in Carrickfergus
Other work in Ballymena:
FAQ
Bungalow rear extension questions in Ballymena
How much does a bungalow rear extension cost in Ballymena?
As a guide, £1,610–£2,610 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £19,500–£31,500 at that rate. Your written price follows the survey.
Is the site visit in Ballymena free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can a bungalow extension be fully accessible?
Yes: level thresholds, wider doors and a wet room are straightforward to design in.
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.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
How long does a rear extension take to build in Ballymena?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.