Two-storey extensions in Prestatyn
We design, get approval for and build two-storey extensions in Prestatyn and the surrounding area. Choose the type of extension below or book a free site visit.
Prestatyn at a glance
- Postcode districts
- LL19
- Area
- Clwyd, Wales
- Price region
- Wales
- Nearest towns
- Rhyl (3.7 miles), Abergele (8.1 miles), Holywell (Clwyd) (8.6 miles), Denbigh (10.7 miles)
- Distance to Wrexham
- about 26.5 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 Prestatyn (LL19) and the places around it, including Rhyl (3.7 miles), Abergele (8.1 miles) and Holywell (Clwyd).
Extensions available in Prestatyn

Two-storey rear extensions
Design, approvals and build for Prestatyn homes. Guide from £51,500.
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Two-storey side extensions
From £79,000 in Prestatyn. Free visit to firm it up.
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Two-storey wraparound extensions
From £111,000 in Prestatyn. 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
From £29,000 in Prestatyn. Free visit to firm it up.
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First-floor extensions
Design, approvals and build for Prestatyn homes. Guide from £23,000.
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Two-storey extensions for semi-detached houses
Prestatyn guide price from £51,500, Standard spec.
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Two-storey extensions for detached houses
Guide from £79,000 in Prestatyn, including VAT.
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Kitchen extensions with bedrooms above
For homes in Prestatyn: typical guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Guide from £51,500 (plus en-suite) in Prestatyn, including VAT.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Clwyd, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Prestatyn
Prestatyn 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 Prestatyn
Do you cover Prestatyn?
Yes. We cover Prestatyn (LL19) and the surrounding area, including Rhyl and Abergele. The first site visit is free.
What does a two-storey extension cost in Prestatyn?
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 Prestatyn do you cover?
Everywhere around it, including Rhyl (3.7 miles), Abergele (8.1 miles) and Holywell (Clwyd) (8.6 miles), and the rest of Clwyd.