AL4 planning approval rate
The AL4 postcode area falls under North Hertfordshire council, which has a 93.5% planning approval rate based on 1,459 decisions.
Last updated: October 2026
What this means for AL4
If you're planning a project in the AL4 area, your application will be decided by North Hertfordshire council. Based on historical data, around 6.5% 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 North Hertfordshire, 1 in 15 applications are refused. Your PlanningLens Full Planning Analysis gives you 17 pages of intelligence specific to your property:
✓ Common refusal reasons in North Hertfordshire
✓ Your 10 nearest comparable planning decisions
✓ Appeal success rates
✓ PDF report to share with your architect
Free. Based on 1,459 decisions.
Planning professional? PlanningLens runs refusal alerts and evidence packs for North Hertfordshire and any other published UK council — see the data services →