Two-storey extensions in Attleborough (Norfolk)
Everything for a two-storey extension in Attleborough (Norfolk), in one place: types, guide prices for the East of England, the approval rules in England and how to get started.
Attleborough (Norfolk) at a glance
- Postcode districts
- NR16, NR17 and NR18
- Area
- Norfolk, England
- Price region
- East of England
- Nearest towns
- Watton (8.4 miles), Diss (10.5 miles), Bowthorpe (11.9 miles), East Dereham (11.9 miles)
- Distance to Norwich
- about 14.1 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 districts NR16, NR17 and NR18 in and around Attleborough (Norfolk), along with neighbouring Watton, Diss and Bowthorpe.
Extensions available in Attleborough (Norfolk)

Two-storey rear extensions
From £57,500 in Attleborough (Norfolk). Free visit to firm it up.
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Two-storey side extensions
For homes in Attleborough (Norfolk): typical guide from £88,500.
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Two-storey wraparound extensions
From £124,000 in Attleborough (Norfolk). Free visit to firm it up.
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Part single, part two-storey extensions
Attleborough (Norfolk) guide price from £74,000, Standard spec.
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Extensions over a garage
Design, approvals and build for Attleborough (Norfolk) homes. Guide from £32,500.
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First-floor extensions
Our East of England guide starts at £26,000 for this type.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Attleborough (Norfolk) homes. Guide from £57,500.
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Two-storey extensions for detached houses
Attleborough (Norfolk) guide price from £88,500, Standard spec.
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Kitchen extensions with bedrooms above
From £57,500 (before kitchen units) in Attleborough (Norfolk). Free visit to firm it up.
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Extra bedroom and en-suite extensions
For homes in Attleborough (Norfolk): typical guide from £57,500 (plus en-suite).
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Norfolk, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Attleborough (Norfolk)
Attleborough (Norfolk) 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 Attleborough (Norfolk)
Do you cover Attleborough (Norfolk)?
Yes. We cover Attleborough (Norfolk) (NR16, NR17 and NR18) and the surrounding area, including Watton and Diss. The first site visit is free.
What does a two-storey extension cost in Attleborough (Norfolk)?
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 Attleborough (Norfolk) do you cover?
Everywhere around it, including Watton (8.4 miles), Diss (10.5 miles) and Bowthorpe (11.9 miles), and the rest of Norfolk.