Dundonald, County Down
Side return extension in Dundonald
Thinking about a side return extension in Dundonald? Infilling the narrow passage beside a Victorian or Edwardian back addition. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Dundonald (BT16) as part of our County Down work. In Dundonald 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 Dundonald?
Guide prices for a side return extension in Dundonald start from our Northern Ireland rate of £2,000–£3,310 per square metre, including VAT. 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a side return extension in Dundonald?
Here is how the rules in Northern Ireland apply to a side return extension in Dundonald.
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. 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 Dundonald like to extend?
Semis and detached houses are typical of Dundonald, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a side return extension in Dundonald 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 Dundonald
Neighbouring places we cover include Holywood (3.4 miles) and Castlereagh (3.7 miles).
- Side return extension in Holywood
- Side return extension in Castlereagh
- Side return extension in Newtownards
- Side return extension in Belfast
- Side return extension in Newtownabbey
Other work in Dundonald:
FAQ
Side return extension questions in Dundonald
How much does a side return extension cost in Dundonald?
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.
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.
How much space does a side return add?
Typically 8 to 18 square metres, enough to turn a galley kitchen into a kitchen-diner with an island.
Do you handle building control in Dundonald?
Yes. We apply to the council's building control team and hand over the completion certificate.
Is the site visit in Dundonald free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
What postcode areas do you cover around Dundonald?
Including BT16, and the surrounding County Down area.