Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Side Extension approval rate in Leeds

Leeds approved 86.0% of side extension applications, based on 7,188 decisions analysed.

Last updated: September 2026

86.0%
side extension approval rate
7,188
Side Extension decisions
6,179
Approved
1,009
Refused
84.1%
Leeds overall

Side Extension applications are approved at roughly the same rate as the Leeds average (84.1%).

How side extension compares in Leeds

Side Extension (7,188 decided)
86.0%
Leeds all applications (24,994 decided)
84.1%

Planning a side extension in Leeds?

86.0% 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 side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Leeds →

Planning professional? PlanningLens runs refusal alerts and evidence packs for Leeds and any other published UK council — see the data services →

Other project types in Leeds

Rear Extension (10,474 decided)
88.8%
Garage / Parking (6,327 decided)
84.6%
Dormer (4,603 decided)
80.6%
Extension (General) (3,379 decided)
85.4%
77.0%
Wraparound Extension (2,093 decided)
87.1%
Outbuilding (1,943 decided)
82.9%
Front Extension (1,454 decided)
78.3%
Conservatory (1,097 decided)
87.1%
HMO (1,051 decided)
78.8%
New Build (765 decided)
72.8%
Loft Conversion (741 decided)
82.2%
Basement (684 decided)
76.5%
81.1%
Flat Conversion (240 decided)
75.4%
Annex (224 decided)
79.5%
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