Two-storey extensions in Ammanford
We design, get approval for and build two-storey extensions in Ammanford and the surrounding area. Choose the type of extension below or book a free site visit.
Ammanford at a glance
- Postcode districts
- SA18
- Area
- Dyfed, Wales
- Price region
- Wales
- Nearest towns
- Glanamman (2.4 miles), Cross Hands (4.2 miles), Brynamman (5.2 miles), Tumble (5.2 miles)
- Distance to Llanelli
- about 10.7 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.
Ammanford sits about 10.7 miles from Llanelli. Closer to home, Glanamman is 2.4 miles away and Cross Hands 4.2 miles.
Extensions available in Ammanford

Two-storey rear extensions
Our Wales guide starts at £51,500 for this type.
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Two-storey side extensions
For homes in Ammanford: typical guide from £79,000.
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Two-storey wraparound extensions
From £111,000 in Ammanford. Free visit to firm it up.
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Part single, part two-storey extensions
From £66,000 in Ammanford. Free visit to firm it up.
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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
Design, approvals and build for Ammanford homes. Guide from £23,000.
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Two-storey extensions for semi-detached houses
Guide from £51,500 in Ammanford, 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
Design, approvals and build for Ammanford homes. Guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
From £51,500 (plus en-suite) in Ammanford. Free visit to firm it up.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Dyfed, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Ammanford
Ammanford 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 Ammanford
Do you cover Ammanford?
Yes. We cover Ammanford (SA18) and the surrounding area, including Glanamman and Cross Hands. The first site visit is free.
What does a two-storey extension cost in Ammanford?
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 Ammanford do you cover?
Everywhere around it, including Glanamman (2.4 miles), Cross Hands (4.2 miles) and Brynamman (5.2 miles), and the rest of Dyfed.