Two-storey extensions in Deeside
Need more room in Deeside? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Deeside at a glance
- Postcode districts
- CH5
- Area
- Clwyd, Wales
- Price region
- Wales
- Nearest towns
- Hawarden (1.2 miles), Buckley (3 miles), Broughton (3.2 miles), Mold (4.9 miles)
- Distance to Wrexham
- about 10.8 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.
Around Deeside we also work in Hawarden, Buckley and Broughton, and across the rest of Clwyd. Postcode district in and near Deeside: CH5.
Extensions available in Deeside

Two-storey rear extensions
Design, approvals and build for Deeside homes. Guide from £51,500.
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Two-storey side extensions
Guide from £79,000 in Deeside, including VAT.
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Two-storey wraparound extensions
For homes in Deeside: typical guide from £111,000.
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Part single, part two-storey extensions
Deeside guide price from £66,000, Standard spec.
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Extensions over a garage
For homes in Deeside: typical guide from £29,000.
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First-floor extensions
For homes in Deeside: typical guide from £23,000.
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Two-storey extensions for semi-detached houses
Our Wales guide starts at £51,500 for this type.
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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
Our Wales guide starts at £51,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Design, approvals and build for Deeside homes. Guide from £51,500 (plus en-suite).
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Deeside, with a rough idea of the approval route and cost for each.
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 Deeside
Deeside 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 Deeside
Do you cover Deeside?
Yes. We cover Deeside (CH5) and the surrounding area, including Hawarden and Buckley. The first site visit is free.
What does a two-storey extension cost in Deeside?
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 Deeside do you cover?
Everywhere around it, including Hawarden (1.2 miles), Buckley (3 miles) and Broughton (3.2 miles), and the rest of Clwyd.