Rear Extension approval rate in Hounslow
Hounslow approved 85.0% of rear extension applications, based on 26,811 decisions analysed.
Last updated: August 2026
85.0%
rear extension approval rate
26,811
Rear Extension decisions
22,783
Approved
4,028
Refused
87.9%
Hounslow overall
Rear Extension applications are refused more often than the Hounslow average (87.9%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Hounslow
Rear Extension
85.0%
Hounslow all applications
87.9%
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
Other project types in Hounslow
89.7%
88.9%
88.1%
90.3%
80.9%
85.5%
92.9%
94.7%
88.9%
90.0%
89.9%
73.0%
82.9%
48.7%
69.4%