Bangor, County Down
Side return extension in Bangor
For homes in Bangor, a side return extension is often the simplest way to gain space without moving. Infilling the narrow passage beside a Victorian or Edwardian back addition. We take it from survey to completion certificate.
Bangor and its postcode districts BT19 and BT20 are part of our County Down coverage. In Bangor we check the boundary line and the neighbour's gutter before drawing a side return, because a few centimetres decide whether the wall goes on or beside the boundary.
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 side return extension cost in Bangor?
For Bangor we work from the Northern Ireland rate: £2,000–£3,310 per square metre of new floor, including VAT, standard specification. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £24,000–£39,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £35,000–£58,000 |
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 side return extension in Bangor?
Planning for a side return extension in Bangor follows the Northern Irish householder rules.
Northern Ireland's rules restrict side extensions more than rear ones, so a side infill or wraparound usually needs a planning application to the council as well as building control approval.
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. At the first visit we measure what is there now and tell you which route fits: permitted development or a planning application.
What are homes in Bangor like to extend?
Bangor 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 side return extension in Bangor 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.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for council building control.
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.
Side return extensions near Bangor
Neighbouring places we cover include Newtownards (4.8 miles) and Holywood (6.4 miles).
- Side return extension in Newtownards
- Side return extension in Holywood
- Side return extension in Carrickfergus
- Side return extension in Dundonald
- Side return extension in Newtownabbey
Other work in Bangor:
FAQ
Side return extension questions in Bangor
Is the site visit in Bangor free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How much does a side return extension cost in Bangor?
As a guide, £2,000–£3,310 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £24,000–£39,500 at that rate. Your written price follows the survey.
Can I combine a side return with a rear extension?
Yes; that is a wraparound extension, and it gives the biggest open-plan room a terrace can have.
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.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
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.