Two-storey extensions in Formby
Need more room in Formby? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Formby at a glance
- Postcode districts
- L37 and L38
- Area
- Merseyside, England
- Price region
- North West England
- Nearest towns
- Maghull (6 miles), Southport (6.5 miles), Bootle (6.7 miles), Litherland (6.8 miles)
- Distance to Liverpool
- about 10.9 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 L37 and L38 in and around Formby, along with neighbouring Maghull, Southport and Bootle.
Extensions available in Formby
Two-storey rear extensions
For homes in Formby: typical guide from £53,000.
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Two-storey side extensions
From £82,000 in Formby. Free visit to firm it up.
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Two-storey wraparound extensions
Our North West England guide starts at £114,500 for this type.
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Part single, part two-storey extensions
Design, approvals and build for Formby homes. Guide from £68,500.
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Extensions over a garage
Guide from £30,000 in Formby, including VAT.
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First-floor extensions
For homes in Formby: typical guide from £24,000.
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Two-storey extensions for semi-detached houses
Our North West England guide starts at £53,000 for this type.
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Two-storey extensions for detached houses
Formby guide price from £82,000, Standard spec.
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Kitchen extensions with bedrooms above
Our North West England guide starts at £53,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Guide from £53,000 (plus en-suite) in Formby, including VAT.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Formby, with a rough idea of the approval route and cost for each.
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 Formby
Formby 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 Formby
Do you cover Formby?
Yes. We cover Formby (L37 and L38) and the surrounding area, including Maghull and Southport. The first site visit is free.
What does a two-storey extension cost in Formby?
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 Formby do you cover?
Everywhere around it, including Maghull (6 miles), Southport (6.5 miles) and Bootle (6.7 miles), and the rest of Merseyside.