Annex approval rate in Islington
Islington approved 78.9% of annex applications, based on 90 decisions analysed.
Last updated: August 2026
78.9%
annex approval rate
90
Annex decisions
71
Approved
19
Refused
82.8%
Islington overall
Annex applications are refused more often than the Islington average (82.8%), suggesting the council scrutinises these projects more closely.
How annex compares in Islington
Annex
78.9%
Islington all applications
82.8%
Planning a annex in Islington?
78.9% 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 annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Islington →
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Islington
80.7%
82.3%
67.2%
80.7%
76.5%
72.9%
71.7%
80.1%
85.9%
85.4%
67.2%
76.0%
83.0%
79.1%
53.7%