Two-storey extensions in Stowmarket
Homeowners in Stowmarket can use us for the whole project or just the drawings and approvals. Start with a free visit.
Stowmarket at a glance
- Postcode districts
- IP7 and IP14
- Area
- Suffolk, England
- Price region
- East of England
- Nearest towns
- Ipswich (11.2 miles), Bury St Edmunds (12.8 miles), Kesgrave (13.4 miles), Diss (13.8 miles)
- Distance to Ipswich
- about 11.2 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 districts IP7 and IP14 in and around Stowmarket, along with neighbouring Ipswich, Bury St Edmunds and Kesgrave.
Extensions available in Stowmarket

Two-storey rear extensions
Stowmarket guide price from £57,500, Standard spec.
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Two-storey side extensions
From £88,500 in Stowmarket. Free visit to firm it up.
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Two-storey wraparound extensions
Stowmarket guide price from £124,000, Standard spec.
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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
Design, approvals and build for Stowmarket homes. Guide from £32,500.
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First-floor extensions
Stowmarket guide price from £26,000, Standard spec.
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Two-storey extensions for semi-detached houses
Stowmarket guide price from £57,500, Standard spec.
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Two-storey extensions for detached houses
For homes in Stowmarket: typical guide from £88,500.
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Kitchen extensions with bedrooms above
For homes in Stowmarket: typical guide from £57,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Guide from £57,500 (plus en-suite) in Stowmarket, including VAT.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Suffolk, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Stowmarket
Stowmarket 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 Stowmarket
Do you cover Stowmarket?
Yes. We cover Stowmarket (IP7 and IP14) and the surrounding area, including Ipswich and Bury St Edmunds. The first site visit is free.
What does a two-storey extension cost in Stowmarket?
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 Stowmarket do you cover?
Everywhere around it, including Ipswich (11.2 miles), Bury St Edmunds (12.8 miles) and Kesgrave (13.4 miles), and the rest of Suffolk.