Two-storey extensions in Norwich
We design, get approval for and build two-storey extensions in Norwich and the surrounding area. Choose the type of extension below or book a free site visit.
Norwich at a glance
- Postcode districts
- NR1, NR2, NR3, NR4, NR6, NR7 and nearby districts
- Area
- Norfolk, England
- Price region
- East of England
- Nearest towns
- Bowthorpe (3.4 miles), North Walsham (13.9 miles), Attleborough (Norfolk) (14.1 miles), East Dereham (15.8 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 Norwich (NR1, NR2, NR3, NR4, NR6, NR7 and nearby districts) and the places around it, including Bowthorpe (3.4 miles), North Walsham (13.9 miles) and Attleborough (Norfolk).
Extensions available in Norwich
Two-storey rear extensions
Norwich guide price from £57,500, Standard spec.
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Two-storey side extensions
Our East of England guide starts at £88,500 for this type.
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Two-storey wraparound extensions
Guide from £124,000 in Norwich, including VAT.
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Part single, part two-storey extensions
For homes in Norwich: typical guide from £74,000.
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Extensions over a garage
Norwich guide price from £32,500, Standard spec.
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First-floor extensions
Design, approvals and build for Norwich homes. Guide from £26,000.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Norwich homes. Guide from £57,500.
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Two-storey extensions for detached houses
Norwich guide price from £88,500, Standard spec.
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Kitchen extensions with bedrooms above
Our East of England guide starts at £57,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
For homes in Norwich: typical guide from £57,500 (plus en-suite).
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 Norwich, with a rough idea of the approval route and cost for each.
Also available in Norfolk
- 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 Norwich
Norwich 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 Norwich
Do you cover Norwich?
Yes. We cover Norwich (NR1, NR2, NR3, NR4, NR6, NR7 and nearby districts) and the surrounding area, including Bowthorpe and North Walsham. The first site visit is free.
What does a two-storey extension cost in Norwich?
Using our East of 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 £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Norwich do you cover?
Everywhere around it, including Bowthorpe (3.4 miles), North Walsham (13.9 miles) and Attleborough (Norfolk) (14.1 miles), and the rest of Norfolk.