Annex approval rate in Merthyr Tydfil
Merthyr Tydfil approved 94.4% of annex applications, based on 18 decisions analysed.
Last updated: September 2026
94.4%
annex approval rate
18
Annex decisions
17
Approved
1
Refused
88.6%
Merthyr Tydfil overall
Annex applications are approved more often than the Merthyr Tydfil average (88.6%), suggesting the council is relatively receptive to these projects.
How annex compares in Merthyr Tydfil
Annex
94.4%
Merthyr Tydfil all applications
88.6%
Planning a annex in Merthyr Tydfil?
94.4% 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 Merthyr Tydfil →
✓ Nearest comparable annex 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%
89.1%
88.5%
90.0%
86.4%
78.9%
21.1%
81.2%
91.7%
90.0%