Two-storey extensions in Ashington
Everything for a two-storey extension in Ashington, in one place: types, guide prices for North East England, the approval rules in England and how to get started.
Ashington at a glance
- Postcode districts
- NE63
- Area
- Northumberland, England
- Price region
- North East England
- Nearest towns
- Stakeford (1.2 miles), Newbiggin-by-the-Sea (2 miles), Choppington (2.4 miles), Pegswood (3.2 miles)
- Distance to Blyth
- about 4.1 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 district NE63 in and around Ashington, along with neighbouring Stakeford, Newbiggin-by-the-Sea and Choppington.
Extensions available in Ashington
Two-storey rear extensions
For homes in Ashington: typical guide from £50,500.
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Two-storey side extensions
For homes in Ashington: typical guide from £77,500.
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Two-storey wraparound extensions
From £108,500 in Ashington. Free visit to firm it up.
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Part single, part two-storey extensions
Our North East England guide starts at £65,000 for this type.
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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
For homes in Ashington: typical guide from £22,500.
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Two-storey extensions for semi-detached houses
Ashington guide price from £50,500, Standard spec.
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Two-storey extensions for detached houses
From £77,500 in Ashington. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Ashington guide price from £50,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
For homes in Ashington: typical guide from £50,500 (plus en-suite).
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 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 Ashington
Ashington 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 Ashington
Do you cover Ashington?
Yes. We cover Ashington (NE63) and the surrounding area, including Stakeford and Newbiggin-by-the-Sea. The first site visit is free.
What does a two-storey extension cost in Ashington?
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 Ashington do you cover?
Everywhere around it, including Stakeford (1.2 miles), Newbiggin-by-the-Sea (2 miles) and Choppington (2.4 miles), and the rest of Northumberland.