Two-storey extensions in Ely
Homeowners in Ely can use us for the whole project or just the drawings and approvals. Start with a free visit.
Ely at a glance
- Postcode districts
- CB6
- Area
- Cambridgeshire, England
- Price region
- East of England
- Nearest towns
- Soham (5.4 miles), Chatteris (9.7 miles), Mildenhall (11.2 miles), Newmarket (12.3 miles)
- Distance to Peterborough
- about 24.6 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 CB6 in and around Ely, along with neighbouring Soham, Chatteris and Mildenhall.
Extensions available in Ely

Two-storey rear extensions
Design, approvals and build for Ely homes. Guide from £57,500.
Learn more
Two-storey side extensions
Our East of England guide starts at £88,500 for this type.
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
From £74,000 in Ely. Free visit to firm it up.
Learn more
Extensions over a garage
From £32,500 in Ely. Free visit to firm it up.
Learn more
First-floor extensions
Guide from £26,000 in Ely, including VAT.
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 Ely homes. Guide from £88,500.
Learn more
Kitchen extensions with bedrooms above
From £57,500 (before kitchen units) in Ely. Free visit to firm it up.
Learn more
Extra bedroom and en-suite extensions
From £57,500 (plus en-suite) in Ely. Free visit to firm it up.
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in Cambridgeshire
- 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 Ely
Ely 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 Ely
Do you cover Ely?
Yes. We cover Ely (CB6) and the surrounding area, including Soham and Chatteris. The first site visit is free.
What does a two-storey extension cost in Ely?
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 Ely do you cover?
Everywhere around it, including Soham (5.4 miles), Chatteris (9.7 miles) and Mildenhall (11.2 miles), and the rest of Cambridgeshire.