Two-storey extensions in Rainhill
Planning a bigger home in Rainhill? Compare extension types and guide prices below, then book a free site visit.
Rainhill at a glance
- Postcode districts
- L35
- Area
- Merseyside, England
- Price region
- North West England
- Nearest towns
- Whiston (1 mile), Prescot (1.7 miles), St Helens (2.7 miles), Huyton (3 miles)
- Distance to Liverpool
- about 8.7 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 Rainhill (L35) and the places around it, including Whiston (1.0 miles), Prescot (1.7 miles) and St Helens.
Extensions available in Rainhill
Two-storey rear extensions
Guide from £53,000 in Rainhill, including VAT.
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Two-storey side extensions
Our North West England guide starts at £82,000 for this type.
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Two-storey wraparound extensions
For homes in Rainhill: typical guide from £114,500.
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Part single, part two-storey extensions
From £68,500 in Rainhill. Free visit to firm it up.
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Extensions over a garage
From £30,000 in Rainhill. Free visit to firm it up.
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First-floor extensions
Rainhill guide price from £24,000, Standard spec.
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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
Design, approvals and build for Rainhill homes. Guide from £82,000.
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Kitchen extensions with bedrooms above
Design, approvals and build for Rainhill homes. Guide from £53,000 (before kitchen units).
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Extra bedroom and en-suite extensions
For homes in Rainhill: typical guide from £53,000 (plus en-suite).
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Rainhill we measure distances to every boundary before suggesting a type.
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 Rainhill
Rainhill 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 Rainhill
Do you cover Rainhill?
Yes. We cover Rainhill (L35) and the surrounding area, including Whiston and Prescot. The first site visit is free.
What does a two-storey extension cost in Rainhill?
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 Rainhill do you cover?
Everywhere around it, including Whiston (1 mile), Prescot (1.7 miles) and St Helens (2.7 miles), and the rest of Merseyside.