Two-storey extensions in Fishguard
Everything for a two-storey extension in Fishguard, in one place: types, guide prices for Wales, the approval rules in Wales and how to get started.
Fishguard at a glance
- Postcode districts
- SA42, SA64 and SA65
- Area
- Dyfed, Wales
- Price region
- Wales
- Nearest towns
- Haverfordwest (13.3 miles), Cardigan (14.7 miles), Steynton (18.4 miles), Milford Haven (19.6 miles)
- Distance to Llanelli
- about 40.9 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 Fishguard we also work in Haverfordwest, Cardigan and Steynton, and across the rest of Dyfed. Postcode districts in and near Fishguard: SA42, SA64 and SA65.
Extensions available in Fishguard

Two-storey rear extensions
Design, approvals and build for Fishguard homes. Guide from £51,500.
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Two-storey side extensions
Guide from £79,000 in Fishguard, including VAT.
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Two-storey wraparound extensions
Guide from £111,000 in Fishguard, including VAT.
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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
For homes in Fishguard: typical guide from £29,000.
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First-floor extensions
From £23,000 in Fishguard. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Fishguard guide price from £51,500, Standard spec.
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Two-storey extensions for detached houses
Design, approvals and build for Fishguard homes. Guide from £79,000.
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Kitchen extensions with bedrooms above
From £51,500 (before kitchen units) in Fishguard. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Our Wales guide starts at £51,500 (plus en-suite) for this type.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Fishguard we also design annexes, home offices and bedrooms over garages.
Also available in Dyfed
- 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 Fishguard
Fishguard 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 Fishguard
Do you cover Fishguard?
Yes. We cover Fishguard (SA42, SA64 and SA65) and the surrounding area, including Haverfordwest and Cardigan. The first site visit is free.
What does a two-storey extension cost in Fishguard?
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 Fishguard do you cover?
Everywhere around it, including Haverfordwest (13.3 miles), Cardigan (14.7 miles) and Steynton (18.4 miles), and the rest of Dyfed.