Two-storey extensions in Maghera
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Maghera.
Maghera at a glance
- Postcode districts
- BT46
- Area
- County Londonderry, Northern Ireland
- Price region
- Northern Ireland
- Nearest towns
- Magherafelt (6.8 miles), Dungiven (11.5 miles), Cookstown (14.2 miles), Ballymena (15.8 miles)
- Distance to Derry
- about 27.4 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Most others need planning permission.
We cover postcode district BT46 in and around Maghera, along with neighbouring Magherafelt, Dungiven and Cookstown.
Extensions available in Maghera

Two-storey rear extensions
Guide from £49,500 in Maghera, including VAT.
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Two-storey side extensions
Guide from £76,000 in Maghera, including VAT.
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Two-storey wraparound extensions
From £106,000 in Maghera. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £63,500 in Maghera, including VAT.
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Extensions over a garage
Maghera guide price from £27,500, Standard spec.
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First-floor extensions
Guide from £22,000 in Maghera, including VAT.
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Two-storey extensions for semi-detached houses
For homes in Maghera: typical guide from £49,500.
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Two-storey extensions for detached houses
Our Northern Ireland guide starts at £76,000 for this type.
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Kitchen extensions with bedrooms above
Maghera guide price from £49,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
From £49,500 (plus en-suite) in Maghera. Free visit to firm it up.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in County Londonderry, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
Also available in County Londonderry
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Design and build two-storey extensions
Rules for Maghera
Maghera is in Northern Ireland. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Most others need planning permission. Planning application for works to a house: £347. Councils aim to decide local applications within an average of 15 weeks; many take longer.
The full Northern Ireland rules explained
Questions about extensions in Maghera
Do you cover Maghera?
Yes. We cover Maghera (BT46) and the surrounding area, including Magherafelt and Dungiven. The first site visit is free.
What does a two-storey extension cost in Maghera?
Using our Northern Ireland guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £49,500–£66,500 including VAT. An extension over a garage is about £27,500–£40,500.
Which other places near Maghera do you cover?
Everywhere around it, including Magherafelt (6.8 miles), Dungiven (11.5 miles) and Cookstown (14.2 miles), and the rest of County Londonderry.