Rear Extension approval rate in Knowsley
Knowsley approved 97.4% of rear extension applications, based on 1,455 decisions analysed.
Last updated: September 2026
97.4%
rear extension approval rate
1,455
Rear Extension decisions
1,417
Approved
38
Refused
94.9%
Knowsley overall
Rear Extension applications are approved more often than the Knowsley average (94.9%), suggesting the council is relatively receptive to these projects.
How rear extension compares in Knowsley
Rear Extension
97.4%
Knowsley all applications
94.9%
Planning a rear extension in Knowsley?
97.4% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.
✓ Your ward's rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Knowsley →
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Knowsley and any other published UK council — see the data services →
Other project types in Knowsley
97.3%
96.0%
91.8%
99.4%
98.7%
95.3%
93.0%
97.6%
97.5%
92.7%
96.8%
96.6%