Two-storey extensions in Royston (Cambridgeshire)
Homeowners in Royston (Cambridgeshire) can use us for the whole project or just the drawings and approvals. Start with a free visit.
Royston (Cambridgeshire) at a glance
- Postcode districts
- SG8
- Area
- Cambridgeshire, England
- Price region
- East of England
- Nearest towns
- Baldock (8.1 miles), Letchworth Garden City (9.8 miles), Biggleswade (10.6 miles), Henlow (11.2 miles)
- Distance to Peterborough
- about 37.5 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.
Royston (Cambridgeshire) sits about 37.5 miles from Peterborough. Closer to home, Baldock is 8.1 miles away and Letchworth Garden City 9.8 miles.
Extensions available in Royston (Cambridgeshire)
Two-storey rear extensions
Design, approvals and build for Royston (Cambridgeshire) homes. Guide from £57,500.
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Two-storey side extensions
Royston (Cambridgeshire) guide price from £88,500, Standard spec.
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Two-storey wraparound extensions
For homes in Royston (Cambridgeshire): 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
Our East of England guide starts at £32,500 for this type.
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First-floor extensions
Royston (Cambridgeshire) guide price from £26,000, Standard spec.
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Two-storey extensions for semi-detached houses
Guide from £57,500 in Royston (Cambridgeshire), including VAT.
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Two-storey extensions for detached houses
From £88,500 in Royston (Cambridgeshire). Free visit to firm it up.
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Kitchen extensions with bedrooms above
Guide from £57,500 (before kitchen units) in Royston (Cambridgeshire), including VAT.
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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?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Royston (Cambridgeshire) we also design annexes, home offices and bedrooms over garages.
Also available in Cambridgeshire
- 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 Royston (Cambridgeshire)
Royston (Cambridgeshire) 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 Royston (Cambridgeshire)
Do you cover Royston (Cambridgeshire)?
Yes. We cover Royston (Cambridgeshire) (SG8) and the surrounding area, including Baldock and Letchworth Garden City. The first site visit is free.
What does a two-storey extension cost in Royston (Cambridgeshire)?
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 Royston (Cambridgeshire) do you cover?
Everywhere around it, including Baldock (8.1 miles), Letchworth Garden City (9.8 miles) and Biggleswade (10.6 miles), and the rest of Cambridgeshire.