Rear extension planning approval in South Downs
Based on decisions in the last 5 years, as of 1 Jul 2026.
Of 102 rear extension planning applications decided by South Downs in the last 5 years, 80% were approved. This is the council's track record for this kind of work. It is a useful gauge before you apply, not a guarantee for any one application.
Other work in South Downs
- Extension : 91% approved (222 decided)
- Tree work : 98% approved (194 decided)
- Roof / fenestration : 92% approved (88 decided)
- Outbuilding / garden room : 91% approved (85 decided)
- Demolition : 90% approved (80 decided)
- Solar / renewables : 96% approved (54 decided)
- Side extension : 83% approved (53 decided)
- Windows & doors : 98% approved (50 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for South Downs, matched to a type of work from the application description. We lead with the last few years so the figure reflects how South Downs decides today, with the longer record as context. A rate is only shown once there are enough decided applications for it to be reliable. We publish aggregate figures only, never an individual application or applicant name. Read the full method and limits.