Two-storey extensions in Porthcawl
Planning a bigger home in Porthcawl? Compare extension types and guide prices below, then book a free site visit.
Porthcawl at a glance
- Postcode districts
- CF36
- Area
- Mid Glamorgan, Wales
- Price region
- Wales
- Nearest towns
- Pyle (2.6 miles), Bridgend (5.7 miles), Aberkenfig (6.3 miles), Coity (7 miles)
- Distance to Rhondda
- about 16.6 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.
Porthcawl sits about 16.6 miles from Rhondda. Closer to home, Pyle is 2.6 miles away and Bridgend 5.7 miles.
Extensions available in Porthcawl

Two-storey rear extensions
Porthcawl guide price from £51,500, Standard spec.
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Two-storey side extensions
Guide from £79,000 in Porthcawl, including VAT.
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Two-storey wraparound extensions
From £111,000 in Porthcawl. Free visit to firm it up.
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Part single, part two-storey extensions
From £66,000 in Porthcawl. Free visit to firm it up.
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Extensions over a garage
Porthcawl guide price from £29,000, Standard spec.
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First-floor extensions
Design, approvals and build for Porthcawl homes. Guide from £23,000.
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Two-storey extensions for semi-detached houses
Guide from £51,500 in Porthcawl, including VAT.
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Two-storey extensions for detached houses
From £79,000 in Porthcawl. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Design, approvals and build for Porthcawl homes. Guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
For homes in Porthcawl: typical guide from £51,500 (plus en-suite).
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 Mid Glamorgan
- 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 Porthcawl
Porthcawl 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 Porthcawl
Do you cover Porthcawl?
Yes. We cover Porthcawl (CF36) and the surrounding area, including Pyle and Bridgend. The first site visit is free.
What does a two-storey extension cost in Porthcawl?
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 Porthcawl do you cover?
Everywhere around it, including Pyle (2.6 miles), Bridgend (5.7 miles) and Aberkenfig (6.3 miles), and the rest of Mid Glamorgan.