Two-storey extensions in Rhyl
Need more room in Rhyl? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Rhyl at a glance
- Postcode districts
- LL18
- Area
- Clwyd, Wales
- Price region
- Wales
- Nearest towns
- Prestatyn (3.7 miles), Abergele (4.4 miles), Colwyn Bay (9.8 miles), Denbigh (9.9 miles)
- Distance to Wrexham
- about 28 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.
Rhyl sits about 28.0 miles from Wrexham. Closer to home, Prestatyn is 3.7 miles away and Abergele 4.4 miles.
Extensions available in Rhyl

Two-storey rear extensions
From £51,500 in Rhyl. Free visit to firm it up.
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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
Guide from £111,000 in Rhyl, including VAT.
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Part single, part two-storey extensions
Design, approvals and build for Rhyl homes. Guide from £66,000.
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Extensions over a garage
Design, approvals and build for Rhyl homes. Guide from £29,000.
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First-floor extensions
Our Wales guide starts at £23,000 for this type.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Rhyl homes. Guide from £51,500.
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Two-storey extensions for detached houses
From £79,000 in Rhyl. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Our Wales guide starts at £51,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
From £51,500 (plus en-suite) in Rhyl. Free visit to firm it up.
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 Clwyd
- 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 Rhyl
Rhyl 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 Rhyl
Do you cover Rhyl?
Yes. We cover Rhyl (LL18) and the surrounding area, including Prestatyn and Abergele. The first site visit is free.
What does a two-storey extension cost in Rhyl?
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 Rhyl do you cover?
Everywhere around it, including Prestatyn (3.7 miles), Abergele (4.4 miles) and Colwyn Bay (9.8 miles), and the rest of Clwyd.