Two-storey extensions in Haverhill
Homeowners in Haverhill can use us for the whole project or just the drawings and approvals. Start with a free visit.
Haverhill at a glance
- Postcode districts
- CB9
- Area
- Suffolk, England
- Price region
- East of England
- Nearest towns
- Saffron Walden (9.3 miles), Newmarket (11.3 miles), Halstead (12.7 miles), Sudbury (Suffolk) (12.8 miles)
- Distance to Ipswich
- about 30.5 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 Haverhill (CB9) and the places around it, including Saffron Walden (9.3 miles), Newmarket (11.3 miles) and Halstead.
Extensions available in Haverhill
Two-storey rear extensions
Haverhill guide price from £57,500, Standard spec.
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Two-storey side extensions
Haverhill guide price from £88,500, Standard spec.
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Two-storey wraparound extensions
For homes in Haverhill: typical guide from £124,000.
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Part single, part two-storey extensions
Our East of England guide starts at £74,000 for this type.
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Extensions over a garage
Guide from £32,500 in Haverhill, including VAT.
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First-floor extensions
Guide from £26,000 in Haverhill, including VAT.
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Two-storey extensions for semi-detached houses
For homes in Haverhill: typical guide from £57,500.
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Two-storey extensions for detached houses
Haverhill guide price from £88,500, Standard spec.
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Kitchen extensions with bedrooms above
From £57,500 (before kitchen units) in Haverhill. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Our East of England guide starts at £57,500 (plus en-suite) for this type.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Haverhill, with a rough idea of the approval route and cost for each.
Also available in Suffolk
- 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 Haverhill
Haverhill 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 Haverhill
Do you cover Haverhill?
Yes. We cover Haverhill (CB9) and the surrounding area, including Saffron Walden and Newmarket. The first site visit is free.
What does a two-storey extension cost in Haverhill?
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 Haverhill do you cover?
Everywhere around it, including Saffron Walden (9.3 miles), Newmarket (11.3 miles) and Halstead (12.7 miles), and the rest of Suffolk.