Two-storey extensions in Abercarn
We design, get approval for and build two-storey extensions in Abercarn and the surrounding area. Choose the type of extension below or book a free site visit.
Abercarn at a glance
- Postcode districts
- NP11
- Area
- Gwent, Wales
- Price region
- Wales
- Nearest towns
- Newbridge (1.3 miles), Crumlin (Gwent) (2.1 miles), Risca (3.1 miles), Blackwood (3.4 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.
We cover Abercarn (NP11) and the places around it, including Newbridge (1.3 miles), Crumlin (Gwent) (2.1 miles) and Risca.
Extensions available in Abercarn

Two-storey rear extensions
Guide from £51,500 in Abercarn, including VAT.
Learn more
Two-storey side extensions
Design, approvals and build for Abercarn homes. Guide from £79,000.
Learn more
Two-storey wraparound extensions
From £111,000 in Abercarn. Free visit to firm it up.
Learn more
Part single, part two-storey extensions
Design, approvals and build for Abercarn homes. Guide from £66,000.
Learn more
Extensions over a garage
Guide from £29,000 in Abercarn, including VAT.
Learn more
First-floor extensions
For homes in Abercarn: typical guide from £23,000.
Learn more
Two-storey extensions for semi-detached houses
For homes in Abercarn: typical guide from £51,500.
Learn more
Two-storey extensions for detached houses
Design, approvals and build for Abercarn homes. Guide from £79,000.
Learn more
Kitchen extensions with bedrooms above
Abercarn guide price from £51,500 (before kitchen units), Standard spec.
Learn more
Extra bedroom and en-suite extensions
For homes in Abercarn: typical guide from £51,500 (plus en-suite).
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 Abercarn 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 Abercarn
Abercarn 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 Abercarn
Do you cover Abercarn?
Yes. We cover Abercarn (NP11) and the surrounding area, including Newbridge and Crumlin (Gwent). The first site visit is free.
What does a two-storey extension cost in Abercarn?
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 Abercarn do you cover?
Everywhere around it, including Newbridge (1.3 miles), Crumlin (Gwent) (2.1 miles) and Risca (3.1 miles), and the rest of Gwent.