Annex approval rate in Slough
Slough approved 88.2% of annex applications, based on 17 decisions analysed.
Last updated: March 2026
88.2%
annex approval rate
17
Annex decisions
15
Approved
2
Refused
82.2%
Slough overall
Annex applications are approved more often than the Slough average (82.2%), suggesting the council is relatively receptive to these projects.
How annex compares in Slough
Annex
88.2%
Slough all applications
82.2%
Planning a annex in Slough?
88.2% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.
✓ Your ward's annex approval rate
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✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Slough
84.3%
86.4%
86.9%
85.3%
82.9%
84.3%
87.5%
82.2%
82.2%
75.4%
91.3%
69.4%
44.1%
83.3%