Two-storey extensions in Milford Haven
Planning a bigger home in Milford Haven? Compare extension types and guide prices below, then book a free site visit.
Milford Haven at a glance
- Postcode districts
- SA73
- Area
- Dyfed, Wales
- Price region
- Wales
- Nearest towns
- Steynton (1.3 miles), Neyland (3.5 miles), Pembroke Dock (4.3 miles), Pembroke (5.8 miles)
- Distance to Llanelli
- about 37.4 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 Milford Haven (SA73) and the places around it, including Steynton (1.3 miles), Neyland (3.5 miles) and Pembroke Dock.
Extensions available in Milford Haven

Two-storey rear extensions
For homes in Milford Haven: typical guide from £51,500.
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Two-storey side extensions
Our Wales guide starts at £79,000 for this type.
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Two-storey wraparound extensions
Guide from £111,000 in Milford Haven, including VAT.
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Part single, part two-storey extensions
From £66,000 in Milford Haven. Free visit to firm it up.
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Extensions over a garage
Design, approvals and build for Milford Haven homes. Guide from £29,000.
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First-floor extensions
Milford Haven guide price from £23,000, Standard spec.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Milford Haven homes. Guide from £51,500.
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Two-storey extensions for detached houses
Design, approvals and build for Milford Haven homes. Guide from £79,000.
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Kitchen extensions with bedrooms above
Our Wales guide starts at £51,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
For homes in Milford Haven: typical guide from £51,500 (plus en-suite).
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
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 Milford Haven
Milford Haven 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 Milford Haven
Do you cover Milford Haven?
Yes. We cover Milford Haven (SA73) and the surrounding area, including Steynton and Neyland. The first site visit is free.
What does a two-storey extension cost in Milford Haven?
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 Milford Haven do you cover?
Everywhere around it, including Steynton (1.3 miles), Neyland (3.5 miles) and Pembroke Dock (4.3 miles), and the rest of Dyfed.