Two-storey extensions in Pencoed
Everything for a two-storey extension in Pencoed, in one place: types, guide prices for Wales, the approval rules in Wales and how to get started.
Pencoed at a glance
- Postcode districts
- CF35
- Area
- Mid Glamorgan, Wales
- Price region
- Wales
- Nearest towns
- Brynna (1.9 miles), Coity (2.4 miles), Llanharan (2.8 miles), Bridgend (3.5 miles)
- Distance to Rhondda
- about 9.6 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.
We cover postcode district CF35 in and around Pencoed, along with neighbouring Brynna, Coity and Llanharan.
Extensions available in Pencoed

Two-storey rear extensions
Guide from £51,500 in Pencoed, including VAT.
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Two-storey side extensions
Our Wales guide starts at £79,000 for this type.
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Two-storey wraparound extensions
Pencoed guide price from £111,000, Standard spec.
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Part single, part two-storey extensions
From £66,000 in Pencoed. 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
Guide from £23,000 in Pencoed, including VAT.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Pencoed homes. Guide from £51,500.
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Two-storey extensions for detached houses
Design, approvals and build for Pencoed homes. Guide from £79,000.
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Kitchen extensions with bedrooms above
For homes in Pencoed: typical guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Pencoed guide price from £51,500 (plus en-suite), Standard spec.
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 Pencoed we also design annexes, home offices and bedrooms over garages.
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 Pencoed
Pencoed 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 Pencoed
Do you cover Pencoed?
Yes. We cover Pencoed (CF35) and the surrounding area, including Brynna and Coity. The first site visit is free.
What does a two-storey extension cost in Pencoed?
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 Pencoed do you cover?
Everywhere around it, including Brynna (1.9 miles), Coity (2.4 miles) and Llanharan (2.8 miles), and the rest of Mid Glamorgan.