Rear Extension approval rate in Hounslow
Hounslow approved 85.0% of rear extension applications, based on 26,928 decisions analysed.
Last updated: September 2026
85.0%
rear extension approval rate
26,928
Rear Extension decisions
22,876
Approved
4,052
Refused
88.5%
Hounslow overall
Rear Extension applications are refused more often than the Hounslow average (88.5%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Hounslow
Rear Extension
85.0%
Hounslow all applications
88.5%
Planning a rear extension in Hounslow?
85.0% 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 rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hounslow →
✓ Nearest comparable rear extension 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
89.7%
88.8%
88.0%
90.2%
80.9%
85.5%
92.8%
94.8%
88.7%
90.0%
73.0%
89.9%
82.7%
48.3%
68.8%