Annex approval rate in Slough
Slough approved 78.6% of annex applications, based on 28 decisions analysed.
Last updated: August 2026
78.6%
annex approval rate
28
Annex decisions
22
Approved
6
Refused
82.9%
Slough overall
Annex applications are refused more often than the Slough average (82.9%), suggesting the council scrutinises these projects more closely.
How annex compares in Slough
Annex
78.6%
Slough all applications
82.9%
Planning a annex in Slough?
78.6% 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 annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Slough →
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Slough
83.6%
82.4%
84.0%
82.4%
87.5%
85.4%
85.6%
74.4%
83.4%
81.2%
71.5%
86.0%
45.0%
79.2%
68.8%