Two-storey extensions in Magor
We design, get approval for and build two-storey extensions in Magor and the surrounding area. Choose the type of extension below or book a free site visit.
Magor at a glance
- Postcode districts
- NP26
- Area
- Gwent, Wales
- Price region
- Wales
- Nearest towns
- Undy (0.8 miles), Caldicot (3.2 miles), Caerleon (5.6 miles), Newport (Gwent) (7.2 miles)
- Distance to Newport (Gwent)
- about 7.2 miles
- Approvals
- Two-storey rear: ground floor up to 4 m, first floor up to 3 m and 10.5 m from the rear boundary. Some two-storey side extensions can be permitted development.
Magor sits about 7.2 miles from Newport (Gwent). Closer to home, Undy is 0.8 miles away and Caldicot 3.2 miles.
Extensions available in Magor

Two-storey rear extensions
Guide from £51,500 in Magor, including VAT.
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Two-storey side extensions
Guide from £79,000 in Magor, including VAT.
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Two-storey wraparound extensions
From £111,000 in Magor. Free visit to firm it up.
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Part single, part two-storey extensions
Design, approvals and build for Magor homes. Guide from £66,000.
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Extensions over a garage
Magor guide price from £29,000, Standard spec.
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First-floor extensions
Design, approvals and build for Magor homes. Guide from £23,000.
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Two-storey extensions for semi-detached houses
Guide from £51,500 in Magor, including VAT.
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Two-storey extensions for detached houses
Our Wales guide starts at £79,000 for this type.
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Kitchen extensions with bedrooms above
For homes in Magor: typical guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
From £51,500 (plus en-suite) in Magor. Free visit to firm it up.
Learn moreWhich type suits your house?
Which type suits your house in Magor depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
Also available in Gwent
- 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
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Magor
Magor is in Wales. Two-storey rear: ground floor up to 4 m, first floor up to 3 m and 10.5 m from the rear boundary. Some two-storey side extensions can be permitted development. Householder planning application: £585. Councils normally decide householder applications within 8 weeks.
The full Wales rules explained
Questions about extensions in Magor
Do you cover Magor?
Yes. We cover Magor (NP26) and the surrounding area, including Undy and Caldicot. The first site visit is free.
What does a two-storey extension cost in Magor?
Using our Wales 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 £51,500–£69,500 including VAT. An extension over a garage is about £29,000–£42,000.
Which other places near Magor do you cover?
Everywhere around it, including Undy (0.8 miles), Caldicot (3.2 miles) and Caerleon (5.6 miles), and the rest of Gwent.