Side Extension approval rate in Merthyr Tydfil
Merthyr Tydfil approved 87.9% of side extension applications, based on 58 decisions analysed.
Last updated: June 2026
87.9%
side extension approval rate
58
Side Extension decisions
51
Approved
7
Refused
90.6%
Merthyr Tydfil overall
Side Extension applications are refused more often than the Merthyr Tydfil average (90.6%), suggesting the council scrutinises these projects more closely.
How side extension compares in Merthyr Tydfil
Side Extension
87.9%
Merthyr Tydfil all applications
90.6%
Planning a side extension in Merthyr Tydfil?
87.9% 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 Merthyr Tydfil →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Merthyr Tydfil
92.4%
98.6%
88.6%
89.6%
85.7%
79.4%
21.1%
94.4%
81.2%
90.9%