Side Extension approval rate in Haringey
Haringey approved 88.6% of side extension applications, based on 1,408 decisions analysed.
Last updated: September 2026
88.6%
side extension approval rate
1,408
Side Extension decisions
1,248
Approved
160
Refused
86.3%
Haringey overall
Side Extension applications are approved more often than the Haringey average (86.3%), suggesting the council is relatively receptive to these projects.
How side extension compares in Haringey
Side Extension
88.6%
Haringey all applications
86.3%
Planning a side extension in Haringey?
88.6% 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 Haringey →
✓ 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 Haringey and any other published UK council — see the data services →
Other project types in Haringey
88.6%
89.6%
83.1%
86.6%
88.8%
87.5%
85.9%
84.9%
89.5%
58.5%
88.8%
90.7%
94.1%
82.6%
83.7%