Two-storey extensions in Hadleigh
Homeowners in Hadleigh can use us for the whole project or just the drawings and approvals. Start with a free visit.
Hadleigh at a glance
- Postcode districts
- SS9
- Area
- Essex, England
- Price region
- East of England
- Nearest towns
- South Benfleet (2.2 miles), Rayleigh (2.3 miles), Canvey Island (2.5 miles), Pitsea (4.4 miles)
- Distance to Southend-on-Sea
- about 4.6 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.
Hadleigh sits about 4.6 miles from Southend-on-Sea. Closer to home, South Benfleet is 2.2 miles away and Rayleigh 2.3 miles.
Extensions available in Hadleigh
Two-storey rear extensions
Our East of England guide starts at £57,500 for this type.
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Two-storey side extensions
Design, approvals and build for Hadleigh homes. Guide from £88,500.
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Two-storey wraparound extensions
For homes in Hadleigh: typical guide from £124,000.
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Part single, part two-storey extensions
Hadleigh guide price from £74,000, Standard spec.
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Extensions over a garage
Hadleigh guide price from £32,500, Standard spec.
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First-floor extensions
Guide from £26,000 in Hadleigh, including VAT.
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Two-storey extensions for semi-detached houses
Our East of England guide starts at £57,500 for this type.
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Two-storey extensions for detached houses
Hadleigh guide price from £88,500, Standard spec.
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Kitchen extensions with bedrooms above
For homes in Hadleigh: typical guide from £57,500 (before kitchen units).
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Extra bedroom and en-suite extensions
From £57,500 (plus en-suite) in Hadleigh. 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 Hadleigh we measure distances to every boundary before suggesting a type.
Also available in Essex
- 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 Hadleigh
Hadleigh 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 Hadleigh
Do you cover Hadleigh?
Yes. We cover Hadleigh (SS9) and the surrounding area, including South Benfleet and Rayleigh. The first site visit is free.
What does a two-storey extension cost in Hadleigh?
Using our East of 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 £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Hadleigh do you cover?
Everywhere around it, including South Benfleet (2.2 miles), Rayleigh (2.3 miles) and Canvey Island (2.5 miles), and the rest of Essex.