Two-storey extensions in Annfield Plain
Planning a bigger home in Annfield Plain? Compare extension types and guide prices below, then book a free site visit.
Annfield Plain at a glance
- Postcode districts
- DH9
- Area
- County Durham, England
- Price region
- North East England
- Nearest towns
- Stanley (1.7 miles), Consett (3.7 miles), Chester-le-Street (6.5 miles), Whickham (6.6 miles)
- Distance to Darlington
- about 24.2 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 DH9 in and around Annfield Plain, along with neighbouring Stanley, Consett and Chester-le-Street.
Extensions available in Annfield Plain
Two-storey rear extensions
Design, approvals and build for Annfield Plain homes. Guide from £50,500.
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Two-storey side extensions
From £77,500 in Annfield Plain. Free visit to firm it up.
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Two-storey wraparound extensions
For homes in Annfield Plain: typical guide from £108,500.
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Part single, part two-storey extensions
Design, approvals and build for Annfield Plain homes. Guide from £65,000.
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Extensions over a garage
Design, approvals and build for Annfield Plain homes. Guide from £28,500.
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First-floor extensions
Design, approvals and build for Annfield Plain homes. Guide from £22,500.
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Two-storey extensions for semi-detached houses
Guide from £50,500 in Annfield Plain, including VAT.
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Two-storey extensions for detached houses
Our North East England guide starts at £77,500 for this type.
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Kitchen extensions with bedrooms above
Design, approvals and build for Annfield Plain homes. Guide from £50,500 (before kitchen units).
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Extra bedroom and en-suite extensions
From £50,500 (plus en-suite) in Annfield Plain. Free visit to firm it up.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Annfield Plain we measure distances to every boundary before suggesting a type.
Also available in County Durham
- 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 Annfield Plain
Annfield Plain 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 Annfield Plain
Do you cover Annfield Plain?
Yes. We cover Annfield Plain (DH9) and the surrounding area, including Stanley and Consett. The first site visit is free.
What does a two-storey extension cost in Annfield Plain?
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 Annfield Plain do you cover?
Everywhere around it, including Stanley (1.7 miles), Consett (3.7 miles) and Chester-le-Street (6.5 miles), and the rest of County Durham.