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Outbuilding approval rate in Rhondda Cynon Taf

Rhondda Cynon Taf approved 88.0% of outbuilding applications, based on 166 decisions analysed.

Last updated: September 2026

88.0%
outbuilding approval rate
166
Outbuilding decisions
146
Approved
20
Refused
91.2%
Rhondda Cynon Taf overall

Outbuilding applications are refused more often than the Rhondda Cynon Taf average (91.2%), suggesting the council scrutinises these projects more closely.

How outbuilding compares in Rhondda Cynon Taf

Outbuilding (166 decided)
88.0%
Rhondda Cynon Taf all applications (3,773 decided)
91.2%

Planning a outbuilding in Rhondda Cynon Taf?

88.0% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

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Planning professional? PlanningLens runs refusal alerts and evidence packs for Rhondda Cynon Taf and any other published UK council — see the data services →

Other project types in Rhondda Cynon Taf

Garage / Parking (796 decided)
90.7%
Extension (General) (660 decided)
95.8%
Rear Extension (609 decided)
95.7%
84.4%
Side Extension (269 decided)
97.4%
Dormer (198 decided)
93.9%
Loft Conversion (120 decided)
93.3%
New Build (71 decided)
74.6%
Annex (58 decided)
91.4%
Conservatory (56 decided)
92.9%
HMO (52 decided)
46.2%
Flat Conversion (42 decided)
88.1%
Basement (40 decided)
80.0%
100.0%
Front Extension (30 decided)
96.7%
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