Two-storey extensions in Llandudno
Planning a bigger home in Llandudno? Compare extension types and guide prices below, then book a free site visit.
Llandudno at a glance
- Postcode districts
- LL30
- Area
- Clwyd, Wales
- Price region
- Wales
- Nearest towns
- Deganwy (1.4 miles), Colwyn Bay (4.8 miles), Abergele (10.7 miles), Bethesda (13.6 miles)
- Distance to Wrexham
- about 39.8 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 Llandudno we also work in Deganwy, Colwyn Bay and Abergele, and across the rest of Clwyd. Postcode district in and near Llandudno: LL30.
Extensions available in Llandudno

Two-storey rear extensions
Our Wales guide starts at £51,500 for this type.
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Two-storey side extensions
From £79,000 in Llandudno. Free visit to firm it up.
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Two-storey wraparound extensions
Llandudno guide price from £111,000, Standard spec.
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Part single, part two-storey extensions
Llandudno guide price from £66,000, Standard spec.
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Extensions over a garage
From £29,000 in Llandudno. Free visit to firm it up.
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First-floor extensions
Guide from £23,000 in Llandudno, including VAT.
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Two-storey extensions for semi-detached houses
Llandudno guide price from £51,500, Standard spec.
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Two-storey extensions for detached houses
From £79,000 in Llandudno. Free visit to firm it up.
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Kitchen extensions with bedrooms above
For homes in Llandudno: typical guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Design, approvals and build for Llandudno homes. Guide from £51,500 (plus en-suite).
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 Llandudno
Llandudno 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 Llandudno
Do you cover Llandudno?
Yes. We cover Llandudno (LL30) and the surrounding area, including Deganwy and Colwyn Bay. The first site visit is free.
What does a two-storey extension cost in Llandudno?
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 Llandudno do you cover?
Everywhere around it, including Deganwy (1.4 miles), Colwyn Bay (4.8 miles) and Abergele (10.7 miles), and the rest of Clwyd.