Two-storey extensions in Cranleigh
Need more room in Cranleigh? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Cranleigh at a glance
- Postcode districts
- GU6
- Area
- Surrey, England
- Price region
- South East England
- Nearest towns
- Godalming (6.4 miles), Guildford (7.5 miles), Horsham (8.7 miles), Dorking (9 miles)
- Distance to Woking
- about 12.6 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.
Around Cranleigh we also work in Godalming, Guildford and Horsham, and across the rest of Surrey. Postcode district in and near Cranleigh: GU6.
Extensions available in Cranleigh

Two-storey rear extensions
From £61,500 in Cranleigh. Free visit to firm it up.
Learn more
Two-storey side extensions
Guide from £94,500 in Cranleigh, including VAT.
Learn more
Two-storey wraparound extensions
Design, approvals and build for Cranleigh homes. Guide from £132,500.
Learn more
Part single, part two-storey extensions
From £79,000 in Cranleigh. Free visit to firm it up.
Learn more
Extensions over a garage
For homes in Cranleigh: typical guide from £34,500.
Learn more
First-floor extensions
Our South East England guide starts at £27,500 for this type.
Learn more
Two-storey extensions for semi-detached houses
Cranleigh guide price from £61,500, Standard spec.
Learn more
Two-storey extensions for detached houses
Guide from £94,500 in Cranleigh, including VAT.
Learn more
Kitchen extensions with bedrooms above
Cranleigh guide price from £61,500 (before kitchen units), Standard spec.
Learn more
Extra bedroom and en-suite extensions
For homes in Cranleigh: typical guide from £61,500 (plus en-suite).
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Surrey, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Cranleigh
Cranleigh 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 Cranleigh
Do you cover Cranleigh?
Yes. We cover Cranleigh (GU6) and the surrounding area, including Godalming and Guildford. The first site visit is free.
What does a two-storey extension cost in Cranleigh?
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 Cranleigh do you cover?
Everywhere around it, including Godalming (6.4 miles), Guildford (7.5 miles) and Horsham (8.7 miles), and the rest of Surrey.