Two-storey extensions in Aberystwyth
We design, get approval for and build two-storey extensions in Aberystwyth and the surrounding area. Choose the type of extension below or book a free site visit.
Aberystwyth at a glance
- Postcode districts
- SY24
- Area
- Dyfed, Wales
- Price region
- Wales
- Nearest towns
- Penparcau (0.9 miles), Tywyn (11.8 miles), Llanidloes (23 miles), Llangeler (29.4 miles)
- Distance to Llanelli
- about 50.8 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.
Aberystwyth sits about 50.8 miles from Llanelli. Closer to home, Penparcau is 0.9 miles away and Tywyn 11.8 miles.
Extensions available in Aberystwyth

Two-storey rear extensions
From £51,500 in Aberystwyth. Free visit to firm it up.
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Two-storey side extensions
Aberystwyth guide price from £79,000, Standard spec.
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Two-storey wraparound extensions
Our Wales guide starts at £111,000 for this type.
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Part single, part two-storey extensions
From £66,000 in Aberystwyth. Free visit to firm it up.
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Extensions over a garage
For homes in Aberystwyth: typical guide from £29,000.
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First-floor extensions
For homes in Aberystwyth: typical guide from £23,000.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Aberystwyth homes. Guide from £51,500.
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Two-storey extensions for detached houses
From £79,000 in Aberystwyth. Free visit to firm it up.
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Kitchen extensions with bedrooms above
For homes in Aberystwyth: typical guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
For homes in Aberystwyth: typical guide from £51,500 (plus en-suite).
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 Aberystwyth we measure distances to every boundary before suggesting a type.
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 Aberystwyth
Aberystwyth 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 Aberystwyth
Do you cover Aberystwyth?
Yes. We cover Aberystwyth (SY24) and the surrounding area, including Penparcau and Tywyn. The first site visit is free.
What does a two-storey extension cost in Aberystwyth?
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 Aberystwyth do you cover?
Everywhere around it, including Penparcau (0.9 miles), Tywyn (11.8 miles) and Llanidloes (23 miles), and the rest of Dyfed.