Data-backed planning intelligence · 3,200,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Side Extension approval rate in Basildon

Basildon approved 88.4% of side extension applications, based on 121 decisions analysed.

Last updated: June 2026

88.4%
side extension approval rate
121
Side Extension decisions
107
Approved
14
Refused
90.6%
Basildon overall

Side Extension applications are refused more often than the Basildon average (90.6%), suggesting the council scrutinises these projects more closely.

How side extension compares in Basildon

Side Extension (121 decided)
88.4%
Basildon all applications (1,446 decided)
90.6%

Planning a side extension in Basildon?

88.4% 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 side extension approval rate
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Other project types in Basildon

Rear Extension (250 decided)
89.2%
Garage / Parking (237 decided)
85.7%
Dormer (124 decided)
83.1%
Extension (General) (80 decided)
88.8%
Outbuilding (79 decided)
81.0%
80.8%
Front Extension (65 decided)
92.3%
Loft Conversion (64 decided)
82.8%
New Build (57 decided)
84.2%
Conservatory (29 decided)
96.6%
95.2%
78.9%
HMO (17 decided)
88.2%
Annex (16 decided)
68.8%
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