Annex approval rate in Gwynedd
Gwynedd approved 78.8% of annex applications, based on 165 decisions analysed.
Last updated: June 2026
78.8%
annex approval rate
165
Annex decisions
130
Approved
35
Refused
88.6%
Gwynedd overall
Annex applications are refused more often than the Gwynedd average (88.6%), suggesting the council scrutinises these projects more closely.
How annex compares in Gwynedd
Annex
78.8%
Gwynedd all applications
88.6%
Planning a annex in Gwynedd?
78.8% 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
Other project types in Gwynedd
91.4%
85.9%
86.5%
93.8%
79.3%
92.7%
84.4%
96.4%
91.3%
88.4%
88.9%
64.9%
69.7%
92.3%