Two-storey extensions in Berwick-upon-Tweed
Need more room in Berwick-upon-Tweed? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Berwick-upon-Tweed at a glance
- Postcode districts
- TD15
- Area
- Northumberland, England
- Price region
- North East England
- Nearest towns
- Alnwick (27.2 miles), Amble (34.3 miles), Hadston (36.3 miles), Pegswood (43.1 miles)
- Distance to Blyth
- about 48.4 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 Berwick-upon-Tweed (TD15) and the places around it, including Alnwick (27.2 miles), Amble (34.3 miles) and Hadston.
Extensions available in Berwick-upon-Tweed
Two-storey rear extensions
From £50,500 in Berwick-upon-Tweed. Free visit to firm it up.
Learn more
Two-storey side extensions
Design, approvals and build for Berwick-upon-Tweed homes. Guide from £77,500.
Learn more
Two-storey wraparound extensions
From £108,500 in Berwick-upon-Tweed. Free visit to firm it up.
Learn more
Part single, part two-storey extensions
Berwick-upon-Tweed guide price from £65,000, Standard spec.
Learn more
Extensions over a garage
Our North East England guide starts at £28,500 for this type.
Learn more
First-floor extensions
Design, approvals and build for Berwick-upon-Tweed homes. Guide from £22,500.
Learn more
Two-storey extensions for semi-detached houses
Guide from £50,500 in Berwick-upon-Tweed, including VAT.
Learn more
Two-storey extensions for detached houses
For homes in Berwick-upon-Tweed: typical guide from £77,500.
Learn more
Kitchen extensions with bedrooms above
Our North East England guide starts at £50,500 (before kitchen units) for this type.
Learn more
Extra bedroom and en-suite extensions
From £50,500 (plus en-suite) in Berwick-upon-Tweed. Free visit to firm it up.
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 Berwick-upon-Tweed we also design annexes, home offices and bedrooms over garages.
Also available in Northumberland
- 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 Berwick-upon-Tweed
Berwick-upon-Tweed 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 Berwick-upon-Tweed
Do you cover Berwick-upon-Tweed?
Yes. We cover Berwick-upon-Tweed (TD15) and the surrounding area, including Alnwick and Amble. The first site visit is free.
What does a two-storey extension cost in Berwick-upon-Tweed?
Using our North East 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 £50,500–£68,000 including VAT. An extension over a garage is about £28,500–£41,500.
Which other places near Berwick-upon-Tweed do you cover?
Everywhere around it, including Alnwick (27.2 miles), Amble (34.3 miles) and Hadston (36.3 miles), and the rest of Northumberland.