Downpatrick, County Down
Wraparound extension in Downpatrick
An L-shaped extension that fills the side return and runs across the back. If you live in Downpatrick 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.
We cover Downpatrick (BT30) as part of our County Down work. In Downpatrick 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 Downpatrick?
A wraparound extension in Downpatrick 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a wraparound extension in Downpatrick?
Planning for a wraparound extension in Downpatrick follows the Northern Irish householder rules.
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 Downpatrick like to extend?
Semis and detached houses are typical of Downpatrick, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a wraparound extension in Downpatrick comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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.
Wraparound extensions near Downpatrick
Close by, we work in Castlereagh, about 18.3 miles away, and Newtownards, about 18.3 miles away.
- Wraparound extension in Castlereagh
- Wraparound extension in Newtownards
- Wraparound extension in Dundonald
- Wraparound extension in Lisburn
- Wraparound extension in Belfast
Other work in Downpatrick:
FAQ
Wraparound extension questions in Downpatrick
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.
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 the corner be all glass?
Yes, with a steel or aluminium post or a structural glass corner. It needs careful thermal detailing to meet Building Regulations.
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.
Do I need planning permission for a rear extension in Downpatrick?
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 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.