
A hamlet straddling two counties
Cox Green has fewer than fifty homes in total, with most of them, around thirty-six, sitting on the Sussex side of the border within Rudgwick parish, while the remainder lie just across the boundary in Surrey.
That split matters for anyone converting a garage here, since it affects which county and which planning authority actually covers a specific property.
Close to Rudgwick's amenities
Despite its small size, Cox Green sits close enough to Rudgwick village to make use of its shops, doctor, dentist, pub and church, rather than having services of its own.

Council and distance from Horsham
Homes on the Sussex side of Cox Green fall within Rudgwick parish and come under Horsham District Council, around five and a half miles west of Horsham town centre; those on the Surrey side would need to check with the relevant Surrey authority instead.
Frequently asked questions
Is all of Cox Green in West Sussex?+
No, the hamlet straddles the Sussex and Surrey border, with most of its homes on the Sussex side within Rudgwick parish and a smaller number just across into Surrey.
Which council covers the Sussex side of Cox Green?+
Horsham District Council covers planning and building control for the part of Cox Green within Rudgwick parish.
Nearby areas
Services
Useful local links
- Crawley Borough Council – Planning — The planning authority for Crawley, which sits outside the Horsham district boundary.
- GOV.UK – Planning permission: when you need it — Government guidance on when planning permission is required in England and Wales.
- GOV.UK – Party Wall etc. Act 1996 guidance — Government guidance on notifying neighbours and resolving disputes over shared or boundary walls, relevant to attached garage conversions.
- Planning Portal – Garage conversion — National guidance on when planning permission is needed for a garage conversion in England.
- Planning Portal – Extensions — National guidance on permitted development rules for single-storey house extensions.
- Planning Portal – Outbuildings — National guidance on permitted development rules for garden buildings and outbuildings, including height and coverage limits.
