Two-storey extensions in Prescot
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Prescot.
Prescot at a glance
- Postcode districts
- L34
- Area
- Merseyside, England
- Price region
- North West England
- Nearest towns
- Whiston (0.8 miles), Rainhill (1.7 miles), Huyton (2 miles), St Helens (3.1 miles)
- Distance to Liverpool
- about 7.4 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 district L34 in and around Prescot, along with neighbouring Whiston, Rainhill and Huyton.
Extensions available in Prescot

Two-storey rear extensions
From £53,000 in Prescot. Free visit to firm it up.
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Two-storey side extensions
Prescot guide price from £82,000, Standard spec.
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Two-storey wraparound extensions
Design, approvals and build for Prescot homes. Guide from £114,500.
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Part single, part two-storey extensions
Guide from £68,500 in Prescot, including VAT.
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Extensions over a garage
Prescot guide price from £30,000, Standard spec.
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First-floor extensions
From £24,000 in Prescot. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
For homes in Prescot: typical guide from £53,000.
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Two-storey extensions for detached houses
Our North West England guide starts at £82,000 for this type.
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Kitchen extensions with bedrooms above
Prescot guide price from £53,000 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
For homes in Prescot: typical guide from £53,000 (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 Prescot we also design annexes, home offices and bedrooms over garages.
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 Prescot
Prescot 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 Prescot
Do you cover Prescot?
Yes. We cover Prescot (L34) and the surrounding area, including Whiston and Rainhill. The first site visit is free.
What does a two-storey extension cost in Prescot?
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 Prescot do you cover?
Everywhere around it, including Whiston (0.8 miles), Rainhill (1.7 miles) and Huyton (2 miles), and the rest of Merseyside.