Two-storey extensions in Childwall
Homeowners in Childwall can use us for the whole project or just the drawings and approvals. Start with a free visit.
Childwall at a glance
- Postcode districts
- L16
- Area
- Merseyside, England
- Price region
- North West England
- Nearest towns
- Wavertree (0.8 miles), Old Swan (1.3 miles), Knotty Ash (1.3 miles), Mossley Hill (1.5 miles)
- Distance to Liverpool
- about 3.5 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 L16 in and around Childwall, along with neighbouring Wavertree, Old Swan and Knotty Ash.
Extensions available in Childwall

Two-storey rear extensions
From £53,000 in Childwall. Free visit to firm it up.
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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
Design, approvals and build for Childwall homes. Guide from £114,500.
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Part single, part two-storey extensions
Guide from £68,500 in Childwall, including VAT.
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Extensions over a garage
From £30,000 in Childwall. Free visit to firm it up.
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First-floor extensions
Design, approvals and build for Childwall homes. Guide from £24,000.
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Two-storey extensions for semi-detached houses
From £53,000 in Childwall. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Childwall homes. Guide from £82,000.
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Kitchen extensions with bedrooms above
Guide from £53,000 (before kitchen units) in Childwall, including VAT.
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Extra bedroom and en-suite extensions
For homes in Childwall: 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 Childwall 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 Childwall
Childwall 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 Childwall
Do you cover Childwall?
Yes. We cover Childwall (L16) and the surrounding area, including Wavertree and Old Swan. The first site visit is free.
What does a two-storey extension cost in Childwall?
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 Childwall do you cover?
Everywhere around it, including Wavertree (0.8 miles), Old Swan (1.3 miles) and Knotty Ash (1.3 miles), and the rest of Merseyside.