Side Extension approval rate in Southend-on-Sea
Southend-on-Sea approved 92.1% of side extension applications, based on 215 decisions analysed.
Last updated: September 2026
92.1%
side extension approval rate
215
Side Extension decisions
198
Approved
17
Refused
89.0%
Southend-on-Sea overall
Side Extension applications are approved more often than the Southend-on-Sea average (89.0%), suggesting the council is relatively receptive to these projects.
How side extension compares in Southend-on-Sea
Side Extension
92.1%
Southend-on-Sea all applications
89.0%
Planning a side extension in Southend-on-Sea?
92.1% 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 Southend-on-Sea →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Southend-on-Sea and any other published UK council — see the data services →
Other project types in Southend-on-Sea
90.4%
92.5%
91.0%
90.2%
67.8%
89.5%
88.6%
94.9%
97.8%
92.9%
100.0%
89.3%
82.4%
100.0%