Annex approval rate in Gwynedd
Gwynedd approved 79.0% of annex applications, based on 167 decisions analysed.
Last updated: September 2026
79.0%
annex approval rate
167
Annex decisions
132
Approved
35
Refused
87.8%
Gwynedd overall
Annex applications are refused more often than the Gwynedd average (87.8%), suggesting the council scrutinises these projects more closely.
How annex compares in Gwynedd
Annex
79.0%
Gwynedd all applications
87.8%
Planning a annex in Gwynedd?
79.0% 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 annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Gwynedd →
✓ Nearest comparable annex 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%
93.7%
79.3%
92.7%
84.4%
95.9%
91.5%
88.4%
88.9%
64.9%
69.7%
92.6%