Data-backed planning intelligence · 3,700,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Basement approval rate in Islington

Islington approved 82.3% of basement applications, based on 10,639 decisions analysed.

Last updated: August 2026

82.3%
basement approval rate
10,639
Basement decisions
8,760
Approved
1,879
Refused
82.8%
Islington overall

Basement applications are approved at roughly the same rate as the Islington average (82.8%).

How basement compares in Islington

Basement (10,639 decided)
82.3%
Islington all applications (85,214 decided)
82.8%

Planning a basement in Islington?

82.3% 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 basement approval rate
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Islington →

Other project types in Islington

Rear Extension (11,667 decided)
80.7%
77.0%
Loft Conversion (6,059 decided)
67.2%
Extension (General) (5,803 decided)
80.7%
Dormer (3,491 decided)
76.5%
Garage / Parking (3,076 decided)
72.9%
New Build (2,076 decided)
71.7%
Side Extension (1,924 decided)
80.1%
Conservatory (1,665 decided)
85.9%
Outbuilding (1,501 decided)
85.4%
Flat Conversion (1,422 decided)
67.2%
HMO (321 decided)
76.0%
Wraparound Extension (223 decided)
83.0%
Front Extension (129 decided)
79.1%
Annex (90 decided)
78.9%
53.7%
Check planning approval patterns, Free