Side Extension approval rate in Calderdale
Calderdale approved 88.7% of side extension applications, based on 1,193 decisions analysed.
Last updated: March 2026
88.7%
side extension approval rate
1,193
Side Extension decisions
1,058
Approved
135
Refused
87.6%
Calderdale overall
Side Extension applications are approved at roughly the same rate as the Calderdale average (87.6%).
How side extension compares in Calderdale
Side Extension
88.7%
Calderdale all applications
87.6%
Planning a side extension in Calderdale?
88.7% get approved — but the odds vary by street. Your Pro Report 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
Get Calderdale Pro Report — £79
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Calderdale
89.0%
83.3%
89.2%
81.5%
86.9%
93.4%
87.6%
87.3%
85.4%
74.7%
84.6%
92.1%
75.6%
89.2%
87.1%