Two-storey extensions in Colwyn Bay
Need more room in Colwyn Bay? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Colwyn Bay at a glance
- Postcode districts
- LL28 and LL29
- Area
- Clwyd, Wales
- Price region
- Wales
- Nearest towns
- Deganwy (4.2 miles), Llandudno (4.8 miles), Abergele (6 miles), Rhyl (9.8 miles)
- Distance to Wrexham
- about 35 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 districts LL28 and LL29 in and around Colwyn Bay, along with neighbouring Deganwy, Llandudno and Abergele.
Extensions available in Colwyn Bay
Two-storey rear extensions
From £51,500 in Colwyn Bay. Free visit to firm it up.
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Two-storey side extensions
Design, approvals and build for Colwyn Bay homes. Guide from £79,000.
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Two-storey wraparound extensions
Guide from £111,000 in Colwyn Bay, including VAT.
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Part single, part two-storey extensions
From £66,000 in Colwyn Bay. Free visit to firm it up.
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Extensions over a garage
From £29,000 in Colwyn Bay. Free visit to firm it up.
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First-floor extensions
Design, approvals and build for Colwyn Bay homes. Guide from £23,000.
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Two-storey extensions for semi-detached houses
Colwyn Bay guide price from £51,500, Standard spec.
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Two-storey extensions for detached houses
From £79,000 in Colwyn Bay. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Colwyn Bay guide price from £51,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
For homes in Colwyn Bay: typical guide from £51,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Colwyn Bay depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
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 Colwyn Bay
Colwyn Bay 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 Colwyn Bay
Do you cover Colwyn Bay?
Yes. We cover Colwyn Bay (LL28 and LL29) and the surrounding area, including Deganwy and Llandudno. The first site visit is free.
What does a two-storey extension cost in Colwyn Bay?
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 Colwyn Bay do you cover?
Everywhere around it, including Deganwy (4.2 miles), Llandudno (4.8 miles) and Abergele (6 miles), and the rest of Clwyd.