Two-storey extensions in Abergavenny
Need more room in Abergavenny? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Abergavenny at a glance
- Postcode districts
- NP7
- Area
- Gwent, Wales
- Price region
- Wales
- Nearest towns
- Gilwern (3.3 miles), Blaenavon (4.4 miles), Brynmawr (7.2 miles), Abertillery (8 miles)
- Distance to Newport (Gwent)
- about 16.1 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.
We cover postcode district NP7 in and around Abergavenny, along with neighbouring Gilwern, Blaenavon and Brynmawr.
Extensions available in Abergavenny

Two-storey rear extensions
For homes in Abergavenny: typical guide from £51,500.
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Two-storey side extensions
Guide from £79,000 in Abergavenny, including VAT.
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Two-storey wraparound extensions
From £111,000 in Abergavenny. Free visit to firm it up.
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Part single, part two-storey extensions
For homes in Abergavenny: typical guide from £66,000.
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Extensions over a garage
Our Wales guide starts at £29,000 for this type.
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First-floor extensions
For homes in Abergavenny: typical guide from £23,000.
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Two-storey extensions for semi-detached houses
Guide from £51,500 in Abergavenny, including VAT.
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Two-storey extensions for detached houses
For homes in Abergavenny: typical guide from £79,000.
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Kitchen extensions with bedrooms above
Our Wales guide starts at £51,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Guide from £51,500 (plus en-suite) in Abergavenny, including VAT.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Abergavenny we measure distances to every boundary before suggesting a type.
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 Abergavenny
Abergavenny 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 Abergavenny
Do you cover Abergavenny?
Yes. We cover Abergavenny (NP7) and the surrounding area, including Gilwern and Blaenavon. The first site visit is free.
What does a two-storey extension cost in Abergavenny?
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 Abergavenny do you cover?
Everywhere around it, including Gilwern (3.3 miles), Blaenavon (4.4 miles) and Brynmawr (7.2 miles), and the rest of Gwent.