BN18 planning approval rate
The BN18 postcode area falls under South Downs council, which has a 91.2% planning approval rate based on 5,730 decisions.
Last updated: October 2026
What this means for BN18
If you're planning a project in the BN18 area, your application will be decided by South Downs council. Based on historical data, around 8.8% of applications are refused. The approval rate varies by ward and application type, use our free tool to check your specific property.
What gets approved near your property?
In South Downs, 1 in 11 applications are refused. Your PlanningLens Full Planning Analysis gives you 17 pages of intelligence specific to your property:
✓ Common refusal reasons in South Downs
✓ Your 10 nearest comparable planning decisions
✓ Appeal success rates
✓ PDF report to share with your architect
Free. Based on 5,730 decisions.
Planning professional? PlanningLens runs refusal alerts and evidence packs for South Downs and any other published UK council — see the data services →