Side Extension approval rate in Islington
Islington approved 80.1% of side extension applications, based on 1,918 decisions analysed.
Last updated: June 2026
80.1%
side extension approval rate
1,918
Side Extension decisions
1,536
Approved
382
Refused
82.8%
Islington overall
Side Extension applications are refused more often than the Islington average (82.8%), suggesting the council scrutinises these projects more closely.
How side extension compares in Islington
Side Extension
80.1%
Islington all applications
82.8%
Planning a side extension in Islington?
80.1% 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 side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Islington →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Islington
80.7%
82.3%
67.2%
80.6%
76.6%
72.9%
71.6%
85.9%
85.3%
67.2%
76.7%
82.8%
79.1%
78.9%
53.7%