Two-storey extensions in East Dereham
Everything for a two-storey extension in East Dereham, in one place: types, guide prices for the East of England, the approval rules in England and how to get started.
East Dereham at a glance
- Postcode districts
- NR19 and NR20
- Area
- Norfolk, England
- Price region
- East of England
- Nearest towns
- Watton (9.1 miles), Attleborough (Norfolk) (11.9 miles), Bowthorpe (12.4 miles), Norwich (15.8 miles)
- Distance to Norwich
- about 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 postcode districts NR19 and NR20 in and around East Dereham, along with neighbouring Watton, Attleborough (Norfolk) and Bowthorpe.
Extensions available in East Dereham
Two-storey rear extensions
East Dereham guide price from £57,500, Standard spec.
Learn more
Two-storey side extensions
Guide from £88,500 in East Dereham, including VAT.
Learn more
Two-storey wraparound extensions
Our East of England guide starts at £124,000 for this type.
Learn more
Part single, part two-storey extensions
Our East of England guide starts at £74,000 for this type.
Learn more
Extensions over a garage
Our East of England guide starts at £32,500 for this type.
Learn more
First-floor extensions
East Dereham guide price from £26,000, Standard spec.
Learn more
Two-storey extensions for semi-detached houses
Our East of England guide starts at £57,500 for this type.
Learn more
Two-storey extensions for detached houses
Design, approvals and build for East Dereham homes. Guide from £88,500.
Learn more
Kitchen extensions with bedrooms above
Design, approvals and build for East Dereham homes. Guide from £57,500 (before kitchen units).
Learn more
Extra bedroom and en-suite extensions
East Dereham guide price from £57,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Which type suits your house in East Dereham depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
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 East Dereham
East Dereham 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 East Dereham
Do you cover East Dereham?
Yes. We cover East Dereham (NR19 and NR20) and the surrounding area, including Watton and Attleborough (Norfolk). The first site visit is free.
What does a two-storey extension cost in East Dereham?
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 East Dereham do you cover?
Everywhere around it, including Watton (9.1 miles), Attleborough (Norfolk) (11.9 miles) and Bowthorpe (12.4 miles), and the rest of Norfolk.