Dormer approval rate in Hounslow
Hounslow approved 89.9% of dormer applications, based on 1,439 decisions analysed.
Last updated: September 2026
89.9%
dormer approval rate
1,439
Dormer decisions
1,294
Approved
145
Refused
88.5%
Hounslow overall
Dormer applications are approved at roughly the same rate as the Hounslow average (88.5%).
How dormer compares in Hounslow
Dormer
89.9%
Hounslow all applications
88.5%
Planning a dormer in Hounslow?
89.9% 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 dormer approval rate
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hounslow →
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Hounslow and any other published UK council — see the data services →
Other project types in Hounslow
85.0%
89.7%
88.8%
88.0%
90.2%
80.9%
85.5%
92.8%
94.8%
88.7%
90.0%
73.0%
82.7%
48.3%
68.8%