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

Outbuilding approval rate in Croydon

Croydon approved 75.4% of outbuilding applications, based on 1,588 decisions analysed.

Last updated: September 2026

75.4%
outbuilding approval rate
1,588
Outbuilding decisions
1,198
Approved
390
Refused
80.5%
Croydon overall

Outbuilding applications are refused more often than the Croydon average (80.5%), suggesting the council scrutinises these projects more closely.

How outbuilding compares in Croydon

Outbuilding (1,588 decided)
75.4%
Croydon all applications (31,361 decided)
80.5%

Planning a outbuilding in Croydon?

75.4% 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 outbuilding approval rate
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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Planning professional? PlanningLens runs refusal alerts and evidence packs for Croydon and any other published UK council — see the data services →

Other project types in Croydon

Rear Extension (10,906 decided)
81.4%
Garage / Parking (10,738 decided)
78.6%
Side Extension (5,362 decided)
80.2%
New Build (5,352 decided)
78.7%
Dormer (5,165 decided)
79.6%
Loft Conversion (2,770 decided)
76.6%
62.1%
Extension (General) (1,860 decided)
81.8%
Basement (1,789 decided)
80.0%
Hip-to-Gable Conversion (1,369 decided)
77.4%
Front Extension (1,102 decided)
80.4%
Wraparound Extension (1,067 decided)
78.4%
HMO (797 decided)
52.9%
Flat Conversion (697 decided)
52.9%
Conservatory (656 decided)
85.1%
Annex (216 decided)
72.7%
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