Belfast, County Antrim
Wraparound extension in Belfast
An L-shaped extension that fills the side return and runs across the back. If you live in Belfast and want to know what a wraparound extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Belfast is covered from our County Antrim round, including BT3, BT5, BT7 and BT9. In Belfast we usually draw the wraparound and a simpler rear-only option side by side, so the planning risk and cost difference are clear.
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 wraparound extension cost in Belfast?
A wraparound extension in Belfast is priced at £1,910–£3,130 per square metre including VAT as a guide, before kitchen fit-out and fees. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £42,000–£69,000 |
| L-shaped, about 30 m² of new floor | £57,500–£94,000 |
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 wraparound extension in Belfast?
The planning route for a wraparound extension in Belfast is set by Northern Ireland's householder rules and your council.
In Northern Ireland side extensions that face a road, or go beyond permitted development limits, need planning permission from the council, and most wraparounds go through a planning application.
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. 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 Belfast like to extend?
Semis and detached houses are typical of Belfast, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a wraparound extension in Belfast 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.
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.
Wraparound extensions near Belfast
Close by, we work in Castlereagh, about 2.3 miles away, and Newtownabbey, about 4.4 miles away.
- Wraparound extension in Castlereagh
- Wraparound extension in Newtownabbey
- Wraparound extension in Holywood
- Wraparound extension in Dundonald
- Wraparound extension in Lisburn
Other work in Belfast:
FAQ
Wraparound extension questions in Belfast
Is the site visit in Belfast free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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.
Does a wraparound need planning permission?
Often yes, because the side and rear parts are judged together. Some fit within permitted development; we check before drawing.
Do you handle building control in Belfast?
Yes. We apply to the council's building control team and hand over the completion certificate.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a 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.