Extension (General) approval rate in Merthyr Tydfil

Merthyr Tydfil approved 89.0% of extension (general) applications, based on 91 decisions analysed.

Last updated: August 2026

89.0%

extension (general) approval rate

Extension (General) decisions

Approved

Refused

90.9%

Merthyr Tydfil overall

Extension (General) applications are approved at roughly the same rate as the Merthyr Tydfil average (90.9%).

How extension (general) compares in Merthyr Tydfil

Extension (General) (91 decided)

89.0%

Merthyr Tydfil all applications (1,203 decided)

90.9%

Planning a extension (general) in Merthyr Tydfil?

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Other project types in Merthyr Tydfil

Garage / Parking (178 decided)

92.1%

Rear Extension (149 decided)

98.7%

Change of Use (Residential) (137 decided)

80.3%

Side Extension (59 decided)

88.1%

New Build (50 decided)

90.0%

Outbuilding (43 decided)

86.0%

Dormer (37 decided)

81.1%

HMO (19 decided)

21.1%

Annex (18 decided)

94.4%

Front Extension (16 decided)

81.2%

Conservatory (11 decided)

90.9%

← All Merthyr Tydfil planning statistics

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