Two-storey extensions in Birkenhead
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Birkenhead.
Birkenhead at a glance
- Postcode districts
- CH41 and CH42
- Area
- Merseyside, England
- Price region
- North West England
- Nearest towns
- Liverpool (1.9 miles), Prenton (2.4 miles), Dingle (2.5 miles), Kensington (2.8 miles)
- Distance to Liverpool
- about 1.9 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
We cover postcode districts CH41 and CH42 in and around Birkenhead, along with neighbouring Liverpool, Prenton and Dingle.
Extensions available in Birkenhead
Two-storey rear extensions
Design, approvals and build for Birkenhead homes. Guide from £53,000.
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Two-storey side extensions
Design, approvals and build for Birkenhead homes. Guide from £82,000.
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Two-storey wraparound extensions
Guide from £114,500 in Birkenhead, including VAT.
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Part single, part two-storey extensions
Birkenhead guide price from £68,500, Standard spec.
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Extensions over a garage
Birkenhead guide price from £30,000, Standard spec.
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First-floor extensions
Design, approvals and build for Birkenhead homes. Guide from £24,000.
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Two-storey extensions for semi-detached houses
Guide from £53,000 in Birkenhead, including VAT.
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Two-storey extensions for detached houses
Design, approvals and build for Birkenhead homes. Guide from £82,000.
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Kitchen extensions with bedrooms above
From £53,000 (before kitchen units) in Birkenhead. Free visit to firm it up.
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Extra bedroom and en-suite extensions
For homes in Birkenhead: typical guide from £53,000 (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 Merseyside, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
Also available in Merseyside
- 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 Birkenhead
Birkenhead is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Birkenhead
Do you cover Birkenhead?
Yes. We cover Birkenhead (CH41 and CH42) and the surrounding area, including Liverpool and Prenton. The first site visit is free.
What does a two-storey extension cost in Birkenhead?
Using our North West England 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 £53,000–£72,000 including VAT. An extension over a garage is about £30,000–£43,500.
Which other places near Birkenhead do you cover?
Everywhere around it, including Liverpool (1.9 miles), Prenton (2.4 miles) and Dingle (2.5 miles), and the rest of Merseyside.