Data-backed planning intelligence · 2,500,000+ decisions analysed across England, Scotland and Wales

Dormer approval rate in Islington

Islington approved 76.4% of dormer applications, based on 3,487 decisions analysed.

Last updated: March 2026

76.4%
dormer approval rate
3,487
Dormer decisions
2,663
Approved
824
Refused
82.8%
Islington overall

Dormer applications are refused more often than the Islington average (82.8%), suggesting the council scrutinises these projects more closely.

How dormer compares in Islington

Dormer (3,487 decided)
76.4%
Islington all applications (85,229 decided)
82.8%

Planning a dormer in Islington?

76.4% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's dormer approval rate
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Get Islington Pro Report — £79

Less than one set of revised drawings.

Other project types in Islington

Rear Extension (11,660 decided)
80.7%
Basement (10,638 decided)
82.2%
77.0%
Loft Conversion (6,049 decided)
67.2%
Extension (General) (5,823 decided)
80.6%
Garage / Parking (3,071 decided)
72.8%
New Build (2,073 decided)
71.6%
Side Extension (1,922 decided)
79.9%
Conservatory (1,664 decided)
86.0%
Outbuilding (1,484 decided)
85.0%
Flat Conversion (1,415 decided)
67.1%
HMO (313 decided)
77.3%
Wraparound Extension (220 decided)
82.7%
Front Extension (131 decided)
79.4%
Annex (88 decided)
78.4%
52.5%
Check planning approval patterns — Free