Rear Extension approval rate in Gwynedd
Gwynedd approved 93.7% of rear extension applications, based on 650 decisions analysed.
Last updated: September 2026
93.7%
rear extension approval rate
650
Rear Extension decisions
609
Approved
41
Refused
87.8%
Gwynedd overall
Rear Extension applications are approved more often than the Gwynedd average (87.8%), suggesting the council is relatively receptive to these projects.
How rear extension compares in Gwynedd
Rear Extension
93.7%
Gwynedd all applications
87.8%
Planning a rear extension in Gwynedd?
93.7% 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 Gwynedd →
✓ 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 Gwynedd and any other published UK council — see the data services →
Other project types in Gwynedd
91.5%
85.9%
86.6%
79.3%
92.7%
84.4%
95.9%
79.0%
91.5%
88.4%
88.9%
64.9%
69.7%
92.6%