Two-storey extensions in Chester-le-Street
We design, get approval for and build two-storey extensions in Chester-le-Street and the surrounding area. Choose the type of extension below or book a free site visit.
Chester-le-Street at a glance
- Postcode districts
- DH2 and DH3
- Area
- County Durham, England
- Price region
- North East England
- Nearest towns
- Washington (3.7 miles), Houghton-le-Spring (4.5 miles), Stanley (5 miles), Durham (5.7 miles)
- Distance to Darlington
- about 23.1 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 districts DH2 and DH3 in and around Chester-le-Street, along with neighbouring Washington, Houghton-le-Spring and Stanley.
Extensions available in Chester-le-Street
Two-storey rear extensions
Our North East England guide starts at £50,500 for this type.
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Two-storey side extensions
Guide from £77,500 in Chester-le-Street, including VAT.
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Two-storey wraparound extensions
From £108,500 in Chester-le-Street. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £65,000 in Chester-le-Street, including VAT.
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Extensions over a garage
Chester-le-Street guide price from £28,500, Standard spec.
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First-floor extensions
For homes in Chester-le-Street: typical guide from £22,500.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Chester-le-Street homes. Guide from £50,500.
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Two-storey extensions for detached houses
From £77,500 in Chester-le-Street. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Design, approvals and build for Chester-le-Street homes. Guide from £50,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Design, approvals and build for Chester-le-Street homes. Guide from £50,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Chester-le-Street depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
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 Chester-le-Street
Chester-le-Street 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 Chester-le-Street
Do you cover Chester-le-Street?
Yes. We cover Chester-le-Street (DH2 and DH3) and the surrounding area, including Washington and Houghton-le-Spring. The first site visit is free.
What does a two-storey extension cost in Chester-le-Street?
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 Chester-le-Street do you cover?
Everywhere around it, including Washington (3.7 miles), Houghton-le-Spring (4.5 miles) and Stanley (5 miles), and the rest of County Durham.