Two-storey extensions in Newbiggin-by-the-Sea
Need more room in Newbiggin-by-the-Sea? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Newbiggin-by-the-Sea at a glance
- Postcode districts
- NE64
- Area
- Northumberland, England
- Price region
- North East England
- Nearest towns
- Ashington (2 miles), Stakeford (2.9 miles), Blyth (4 miles), Cowpen (4.1 miles)
- Distance to Blyth
- about 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.
Around Newbiggin-by-the-Sea we also work in Ashington, Stakeford and Blyth, and across the rest of Northumberland. Postcode district in and near Newbiggin-by-the-Sea: NE64.
Extensions available in Newbiggin-by-the-Sea
Two-storey rear extensions
From £50,500 in Newbiggin-by-the-Sea. Free visit to firm it up.
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Two-storey side extensions
Guide from £77,500 in Newbiggin-by-the-Sea, including VAT.
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Two-storey wraparound extensions
For homes in Newbiggin-by-the-Sea: typical guide from £108,500.
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Part single, part two-storey extensions
From £65,000 in Newbiggin-by-the-Sea. Free visit to firm it up.
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Extensions over a garage
Our North East England guide starts at £28,500 for this type.
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First-floor extensions
Design, approvals and build for Newbiggin-by-the-Sea homes. Guide from £22,500.
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Two-storey extensions for semi-detached houses
From £50,500 in Newbiggin-by-the-Sea. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Newbiggin-by-the-Sea homes. Guide from £77,500.
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Kitchen extensions with bedrooms above
Our North East England guide starts at £50,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Design, approvals and build for Newbiggin-by-the-Sea homes. Guide from £50,500 (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 Northumberland, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Newbiggin-by-the-Sea
Newbiggin-by-the-Sea 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 Newbiggin-by-the-Sea
Do you cover Newbiggin-by-the-Sea?
Yes. We cover Newbiggin-by-the-Sea (NE64) and the surrounding area, including Ashington and Stakeford. The first site visit is free.
What does a two-storey extension cost in Newbiggin-by-the-Sea?
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 Newbiggin-by-the-Sea do you cover?
Everywhere around it, including Ashington (2 miles), Stakeford (2.9 miles) and Blyth (4 miles), and the rest of Northumberland.