SL3 planning approval rate
The SL3 postcode area falls under Slough council, which has a 82.2% planning approval rate based on 6,928 decisions.
Last updated: April 2026
82.2%
Slough approval rate
What this means for SL3
If you're planning a project in the SL3 area, your application will be decided by Slough council. Based on historical data, around 17.8% 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 Slough, 1 in 6 applications are refused. Your PlanningLens Pro Report gives you 17 pages of intelligence specific to your property:
✓ Ward-level approval rates for your exact area
✓ Common refusal reasons in Slough
✓ Your 10 nearest comparable planning decisions
✓ Appeal success rates
✓ PDF report to share with your architect
Get Slough Pro Report — £79
✓ Common refusal reasons in Slough
✓ Your 10 nearest comparable planning decisions
✓ Appeal success rates
✓ PDF report to share with your architect
Less than one set of revised drawings. Based on 6,928 decisions.
Slough approval by application type
Full
84.1%
Other
75.3%
Certificate of Lawfulness
81.0%
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95.3%
Trees
91.1%
Prior Approval
73.4%
Listed Building
91.7%