Two-storey extensions in Abertillery
We design, get approval for and build two-storey extensions in Abertillery and the surrounding area. Choose the type of extension below or book a free site visit.
Abertillery at a glance
- Postcode districts
- NP13
- Area
- Gwent, Wales
- Price region
- Wales
- Nearest towns
- Crumlin (Gwent) (3.6 miles), Blaenavon (3.7 miles), Pontypool (4.3 miles), Newbridge (4.4 miles)
- Distance to Newport (Gwent)
- about 11.4 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 Abertillery (NP13) and the places around it, including Crumlin (Gwent) (3.6 miles), Blaenavon (3.7 miles) and Pontypool.
Extensions available in Abertillery

Two-storey rear extensions
From £51,500 in Abertillery. Free visit to firm it up.
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Two-storey side extensions
For homes in Abertillery: typical guide from £79,000.
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Two-storey wraparound extensions
Abertillery guide price from £111,000, Standard spec.
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Part single, part two-storey extensions
For homes in Abertillery: typical guide from £66,000.
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Extensions over a garage
Guide from £29,000 in Abertillery, including VAT.
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First-floor extensions
Design, approvals and build for Abertillery homes. Guide from £23,000.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Abertillery homes. Guide from £51,500.
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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
Guide from £51,500 (before kitchen units) in Abertillery, including VAT.
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Extra bedroom and en-suite extensions
Abertillery guide price from £51,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Abertillery we also design annexes, home offices and bedrooms over garages.
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 Abertillery
Abertillery 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 Abertillery
Do you cover Abertillery?
Yes. We cover Abertillery (NP13) and the surrounding area, including Crumlin (Gwent) and Blaenavon. The first site visit is free.
What does a two-storey extension cost in Abertillery?
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 Abertillery do you cover?
Everywhere around it, including Crumlin (Gwent) (3.6 miles), Blaenavon (3.7 miles) and Pontypool (4.3 miles), and the rest of Gwent.