Side Extension approval rate in Flintshire
Flintshire approved 94.8% of side extension applications, based on 649 decisions analysed.
Last updated: August 2026
94.8%
side extension approval rate
649
Side Extension decisions
615
Approved
34
Refused
87.7%
Flintshire overall
Side Extension applications are approved more often than the Flintshire average (87.7%), suggesting the council is relatively receptive to these projects.
How side extension compares in Flintshire
Side Extension
94.8%
Flintshire all applications
87.7%
Planning a side extension in Flintshire?
94.8% 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 side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Flintshire →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Flintshire
91.1%
87.0%
94.6%
77.0%
81.9%
95.1%
81.5%
84.9%
81.6%
95.3%
93.9%
70.2%
87.5%