Two-storey extensions in Garston
Need more room in Garston? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Garston at a glance
- Postcode districts
- L19
- Area
- Merseyside, England
- Price region
- North West England
- Nearest towns
- Hunts Cross (2.1 miles), Allerton (2.3 miles), Speke (2.5 miles), Mossley Hill (3.1 miles)
- Distance to Liverpool
- about 6.2 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 L19 in and around Garston, along with neighbouring Hunts Cross, Allerton and Speke.
Extensions available in Garston

Two-storey rear extensions
From £53,000 in Garston. Free visit to firm it up.
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Two-storey side extensions
For homes in Garston: typical guide from £82,000.
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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
From £68,500 in Garston. Free visit to firm it up.
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Extensions over a garage
From £30,000 in Garston. Free visit to firm it up.
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First-floor extensions
Guide from £24,000 in Garston, including VAT.
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Two-storey extensions for semi-detached houses
From £53,000 in Garston. Free visit to firm it up.
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Two-storey extensions for detached houses
Guide from £82,000 in Garston, including VAT.
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Kitchen extensions with bedrooms above
From £53,000 (before kitchen units) in Garston. Free visit to firm it up.
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Extra bedroom and en-suite extensions
From £53,000 (plus en-suite) in Garston. Free visit to firm it up.
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 Garston
Garston 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 Garston
Do you cover Garston?
Yes. We cover Garston (L19) and the surrounding area, including Hunts Cross and Allerton. The first site visit is free.
What does a two-storey extension cost in Garston?
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 Garston do you cover?
Everywhere around it, including Hunts Cross (2.1 miles), Allerton (2.3 miles) and Speke (2.5 miles), and the rest of Merseyside.