Extension (General) approval rate in Merthyr Tydfil
Merthyr Tydfil approved 89.1% of extension (general) applications, based on 92 decisions analysed.
Last updated: September 2026
89.1%
extension (general) approval rate
92
Extension (General) decisions
82
Approved
10
Refused
88.6%
Merthyr Tydfil overall
Extension (General) applications are approved at roughly the same rate as the Merthyr Tydfil average (88.6%).
How extension (general) compares in Merthyr Tydfil
Extension (General)
89.1%
Merthyr Tydfil all applications
88.6%
Planning a extension (general) in Merthyr Tydfil?
89.1% 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 extension (general) approval rate
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
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✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Merthyr Tydfil and any other published UK council — see the data services →
Other project types in Merthyr Tydfil
92.3%
98.1%
88.5%
90.0%
86.4%
78.9%
21.1%
94.4%
81.2%
91.7%
90.0%