Two-storey extensions in Tonyrefail
Everything for a two-storey extension in Tonyrefail, in one place: types, guide prices for Wales, the approval rules in Wales and how to get started.
Tonyrefail at a glance
- Postcode districts
- CF39
- Area
- Mid Glamorgan, Wales
- Price region
- Wales
- Nearest towns
- Tonypandy (2.8 miles), Llanharan (3.2 miles), Brynna (3.5 miles), Beddau (3.7 miles)
- Distance to Rhondda
- about 5.2 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.
Tonyrefail sits about 5.2 miles from Rhondda. Closer to home, Tonypandy is 2.8 miles away and Llanharan 3.2 miles.
Extensions available in Tonyrefail

Two-storey rear extensions
For homes in Tonyrefail: typical guide from £51,500.
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Two-storey side extensions
From £79,000 in Tonyrefail. Free visit to firm it up.
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Two-storey wraparound extensions
From £111,000 in Tonyrefail. Free visit to firm it up.
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Part single, part two-storey extensions
Our Wales guide starts at £66,000 for this type.
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Extensions over a garage
Tonyrefail guide price from £29,000, Standard spec.
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First-floor extensions
Guide from £23,000 in Tonyrefail, including VAT.
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Two-storey extensions for semi-detached houses
Guide from £51,500 in Tonyrefail, 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
From £51,500 (before kitchen units) in Tonyrefail. Free visit to firm it up.
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Extra bedroom and en-suite extensions
From £51,500 (plus en-suite) in Tonyrefail. Free visit to firm it up.
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 Tonyrefail we measure distances to every boundary before suggesting a type.
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 Tonyrefail
Tonyrefail 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 Tonyrefail
Do you cover Tonyrefail?
Yes. We cover Tonyrefail (CF39) and the surrounding area, including Tonypandy and Llanharan. The first site visit is free.
What does a two-storey extension cost in Tonyrefail?
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 Tonyrefail do you cover?
Everywhere around it, including Tonypandy (2.8 miles), Llanharan (3.2 miles) and Brynna (3.5 miles), and the rest of Mid Glamorgan.