Two-storey extensions in Billingham
Homeowners in Billingham can use us for the whole project or just the drawings and approvals. Start with a free visit.
Billingham at a glance
- Postcode districts
- TS20, TS22 and TS23
- Area
- County Durham, England
- Price region
- North East England
- Nearest towns
- Stockton-on-Tees (1.8 miles), Middlesbrough (2.4 miles), Thornaby-on-Tees (3.9 miles), Yarm (6.5 miles)
- Distance to Darlington
- about 11.3 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.
Billingham sits about 11.3 miles from Darlington. Closer to home, Stockton-on-Tees is 1.8 miles away and Middlesbrough 2.4 miles.
Extensions available in Billingham
Two-storey rear extensions
For homes in Billingham: typical guide from £50,500.
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Two-storey side extensions
From £77,500 in Billingham. Free visit to firm it up.
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Two-storey wraparound extensions
Design, approvals and build for Billingham homes. Guide from £108,500.
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Part single, part two-storey extensions
Guide from £65,000 in Billingham, including VAT.
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Extensions over a garage
Billingham guide price from £28,500, Standard spec.
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First-floor extensions
From £22,500 in Billingham. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Guide from £50,500 in Billingham, including VAT.
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Two-storey extensions for detached houses
From £77,500 in Billingham. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Billingham guide price from £50,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Guide from £50,500 (plus en-suite) in Billingham, including VAT.
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 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 Billingham
Billingham 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 Billingham
Do you cover Billingham?
Yes. We cover Billingham (TS20, TS22 and TS23) and the surrounding area, including Stockton-on-Tees and Middlesbrough. The first site visit is free.
What does a two-storey extension cost in Billingham?
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 Billingham do you cover?
Everywhere around it, including Stockton-on-Tees (1.8 miles), Middlesbrough (2.4 miles) and Thornaby-on-Tees (3.9 miles), and the rest of County Durham.