Magherafelt, County Londonderry
Glazed rear extension in Magherafelt
Full-height glass, slim frames and big rooflights for the most open rear room. We design, get the approvals for and build glazed and glass-box rear extensions in Magherafelt and the surrounding area, with one contract from the first survey to building control sign-off.
Magherafelt and its postcode districts BT45 are part of our County Londonderry coverage. Glass-led rear extensions in Magherafelt are planned around which way the garden faces, because that decides the glass specification.
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 glazed rear extension cost in Magherafelt?
Guide prices for a glazed rear extension in Magherafelt start from our Northern Ireland rate of £2,440–£4,180 per square metre, including VAT. Northern Ireland prices are the lowest in our range.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £29,000–£50,000 |
| 4 m wide × 6 m deep (24 m²) | £58,500–£100,000 |
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 glazed rear extension in Magherafelt?
Here is how the rules in Northern Ireland apply to a glazed rear extension in Magherafelt.
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.
Insulation and glazing follow Technical Booklet F1 in Northern Ireland, checked by council building control.
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 Magherafelt like to extend?
Magherafelt has terraces near the centre, semis on the edges and many detached houses and bungalows in the surrounding countryside, where plots are often generous.
How a glazed rear extension in Magherafelt 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.
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.
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.
Glazed rear extensions near Magherafelt
We also build glazed and glass-box rear extensions in nearby Cookstown (9.4 miles) and Coalisland (15.1 miles).
- Glazed rear extension in Cookstown
- Glazed rear extension in Coalisland
- Glazed rear extension in Ballymena
- Glazed rear extension in Antrim
- Glazed rear extension in Dungannon
Other work in Magherafelt:
FAQ
Glazed rear extension questions in Magherafelt
What postcode areas do you cover around Magherafelt?
Including BT45, and the surrounding County Londonderry area.
Do you handle building control in Magherafelt?
Yes. We apply to the council's building control team and hand over the completion certificate.
Does glass need planning permission?
The same rules apply as any rear extension; glass does not change the depth or height limits.
Is the site visit in Magherafelt free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can you match the brick or stone on my Magherafelt house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.