Portstewart, County Londonderry
Bungalow rear extension in Portstewart
Single-storey rear extensions that keep everything on one level. If you live in Portstewart and want to know what a bungalow rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Portstewart (BT55) as part of our County Londonderry work. For Portstewart bungalows we design the roof first, because the low eaves decide the height of the new room.
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 bungalow rear extension cost in Portstewart?
A bungalow rear extension in Portstewart is priced at £1,610–£2,610 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 |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £19,500–£31,500 |
| 4 m wide × 6 m deep (24 m²) | £38,500–£62,500 |
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 bungalow rear extension in Portstewart?
Whether your bungalow rear extension in Portstewart needs a planning application depends on its size, your house and any local restrictions.
In Northern Ireland the Planning (General Permitted Development) Order (Northern Ireland) 2015 allows a single-storey rear extension of up to 3 metres on an attached house or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary. Building control approval from the council is still required.
Northern Ireland has no larger-extension prior approval route; anything beyond permitted development needs a planning application.
Conservation areas, Areas of Outstanding Natural Beauty and listed buildings restrict permitted development in Northern Ireland. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Portstewart like to extend?
Semis and detached houses are typical of Portstewart, and many have room for a rear extension within Northern Ireland's permitted development limits.
How a bungalow rear extension in Portstewart 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.
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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Bungalow rear extensions near Portstewart
Neighbouring places we cover include Coleraine (3.8 miles) and Limavady (13.0 miles).
- Bungalow rear extension in Coleraine
- Bungalow rear extension in Limavady
- Bungalow rear extension in Derry~Londonderry
- Bungalow rear extension in Ballymena
- Bungalow rear extension in Magherafelt
Other work in Portstewart:
FAQ
Bungalow rear extension questions in Portstewart
How long does a rear extension take to build in Portstewart?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Can you match the brick or stone on my Portstewart house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Will the roof look odd?
Not if the pitch and tiles match. Where the eaves are low, a flat-roofed section with a lantern is an alternative.
What postcode areas do you cover around Portstewart?
Including BT55, and the surrounding County Londonderry area.
How much does a bungalow rear extension cost in Portstewart?
As a guide, £1,610–£2,610 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £19,500–£31,500 at that rate. Your written price follows the survey.
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.