Castlereagh, County Down
Terraced house rear extension in Castlereagh
For homes in Castlereagh, a terraced house rear extension is often the simplest way to gain space without moving. Rear and side return extensions for terraces, with access through the house and two neighbours. We take it from survey to completion certificate.
Castlereagh is covered from our County Down round, including BT8. In Castlereagh we plan the delivery route through the house and the skip licence before anything else.
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 terraced house rear extension cost in Castlereagh?
In Castlereagh, our guide for a terraced house rear extension is £1,780–£2,870 per square metre including VAT for a standard specification. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £24,000–£39,000 |
| 3 m wide × 6 m deep (18 m²) | £32,000–£51,500 |
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 terraced house rear extension in Castlereagh?
The planning route for a terraced house rear extension in Castlereagh is set by Northern Ireland's householder rules and your council.
Northern Ireland's permitted development rules allow a single-storey rear extension of 3 metres on terraced and semi-detached houses and 4 metres on detached houses, with a 4 metre height limit. Listed buildings, conservation areas and houses with removed rights need planning permission from the council.
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 Castlereagh like to extend?
Semis and detached houses are typical of Castlereagh, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a terraced house rear extension in Castlereagh 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning or permitted development, building control approval, structural design and neighbour agreements are all handled by us.
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.
Terraced house rear extensions near Castlereagh
Neighbouring places we cover include Belfast (2.3 miles) and Dundonald (3.7 miles).
- Terraced house rear extension in Belfast
- Terraced house rear extension in Dundonald
- Terraced house rear extension in Holywood
- Terraced house rear extension in Newtownabbey
- Terraced house rear extension in Lisburn
Other work in Castlereagh:
FAQ
Terraced house rear extension questions in Castlereagh
Do you handle building control in Castlereagh?
Yes. We apply to the council's building control team and hand over the completion certificate.
Is the site visit in Castlereagh free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How do you keep the house clean?
Dust screens, floor protection and a single protected route through the house.
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.
What postcode areas do you cover around Castlereagh?
Including BT8, and the surrounding County Down area.
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.