Two-storey extensions in Brynamman
Everything for a two-storey extension in Brynamman, in one place: types, guide prices for Wales, the approval rules in Wales and how to get started.
Brynamman at a glance
- Postcode districts
- SA18
- Area
- Dyfed, Wales
- Price region
- Wales
- Nearest towns
- Glanamman (2.8 miles), Ystalyfera (4.3 miles), Ammanford (5.2 miles), Clydach (8.2 miles)
- Distance to Llanelli
- about 15 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.
Around Brynamman we also work in Glanamman, Ystalyfera and Ammanford, and across the rest of Dyfed. Postcode district in and near Brynamman: SA18.
Extensions available in Brynamman

Two-storey rear extensions
Design, approvals and build for Brynamman homes. Guide from £51,500.
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Two-storey side extensions
For homes in Brynamman: typical guide from £79,000.
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Two-storey wraparound extensions
Guide from £111,000 in Brynamman, including VAT.
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Part single, part two-storey extensions
From £66,000 in Brynamman. Free visit to firm it up.
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Extensions over a garage
Brynamman guide price from £29,000, Standard spec.
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First-floor extensions
Guide from £23,000 in Brynamman, including VAT.
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Two-storey extensions for semi-detached houses
Brynamman guide price from £51,500, Standard spec.
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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
Design, approvals and build for Brynamman homes. Guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Guide from £51,500 (plus en-suite) in Brynamman, including VAT.
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in Dyfed
- 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 Brynamman
Brynamman 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 Brynamman
Do you cover Brynamman?
Yes. We cover Brynamman (SA18) and the surrounding area, including Glanamman and Ystalyfera. The first site visit is free.
What does a two-storey extension cost in Brynamman?
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 Brynamman do you cover?
Everywhere around it, including Glanamman (2.8 miles), Ystalyfera (4.3 miles) and Ammanford (5.2 miles), and the rest of Dyfed.