Two-storey extensions in Caldicot
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Caldicot.
Caldicot at a glance
- Postcode districts
- NP26
- Area
- Gwent, Wales
- Price region
- Wales
- Nearest towns
- Undy (2.6 miles), Magor (3.2 miles), Chepstow (5.1 miles), Caerleon (8.6 miles)
- Distance to Newport (Gwent)
- about 10.3 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 Caldicot we also work in Undy, Magor and Chepstow, and across the rest of Gwent. Postcode district in and near Caldicot: NP26.
Extensions available in Caldicot

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 Caldicot. Free visit to firm it up.
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Two-storey wraparound extensions
From £111,000 in Caldicot. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £66,000 in Caldicot, including VAT.
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Extensions over a garage
Guide from £29,000 in Caldicot, including VAT.
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First-floor extensions
From £23,000 in Caldicot. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Guide from £51,500 in Caldicot, including VAT.
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Two-storey extensions for detached houses
Guide from £79,000 in Caldicot, including VAT.
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Kitchen extensions with bedrooms above
Caldicot guide price from £51,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
For homes in Caldicot: typical guide from £51,500 (plus en-suite).
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 Caldicot we also design annexes, home offices and bedrooms over garages.
Also available in Gwent
- 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 Caldicot
Caldicot 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 Caldicot
Do you cover Caldicot?
Yes. We cover Caldicot (NP26) and the surrounding area, including Undy and Magor. The first site visit is free.
What does a two-storey extension cost in Caldicot?
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 Caldicot do you cover?
Everywhere around it, including Undy (2.6 miles), Magor (3.2 miles) and Chepstow (5.1 miles), and the rest of Gwent.