Two-storey extensions in Redhill
Homeowners in Redhill can use us for the whole project or just the drawings and approvals. Start with a free visit.
Redhill at a glance
- Postcode districts
- RH1
- Area
- Surrey, England
- Price region
- South East England
- Nearest towns
- Reigate (1.5 miles), Horley (4.6 miles), Caterham (4.9 miles), Coulsdon (5.6 miles)
- Distance to Woking
- about 17.6 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.
Redhill sits about 17.6 miles from Woking. Closer to home, Reigate is 1.5 miles away and Horley 4.6 miles.
Extensions available in Redhill
Two-storey rear extensions
From £61,500 in Redhill. Free visit to firm it up.
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Two-storey side extensions
Design, approvals and build for Redhill homes. Guide from £94,500.
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Two-storey wraparound extensions
Design, approvals and build for Redhill homes. Guide from £132,500.
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Part single, part two-storey extensions
Guide from £79,000 in Redhill, including VAT.
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Extensions over a garage
Design, approvals and build for Redhill homes. Guide from £34,500.
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First-floor extensions
From £27,500 in Redhill. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
For homes in Redhill: typical guide from £61,500.
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Two-storey extensions for detached houses
Redhill guide price from £94,500, Standard spec.
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Kitchen extensions with bedrooms above
From £61,500 (before kitchen units) in Redhill. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Our South East England guide starts at £61,500 (plus en-suite) for this type.
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 Redhill we measure distances to every boundary before suggesting a type.
Also available in Surrey
- 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 Redhill
Redhill 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 Redhill
Do you cover Redhill?
Yes. We cover Redhill (RH1) and the surrounding area, including Reigate and Horley. The first site visit is free.
What does a two-storey extension cost in Redhill?
Using our South 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 £61,500–£83,000 including VAT. An extension over a garage is about £34,500–£50,500.
Which other places near Redhill do you cover?
Everywhere around it, including Reigate (1.5 miles), Horley (4.6 miles) and Caterham (4.9 miles), and the rest of Surrey.