Annex approval rate in Swindon

Swindon approved 88.9% of annex applications, based on 18 decisions analysed.

Last updated: June 2026

88.9%

annex approval rate

Annex decisions

Approved

Refused

94.8%

Swindon overall

Annex applications are refused more often than the Swindon average (94.8%), suggesting the council scrutinises these projects more closely.

How annex compares in Swindon

Annex (18 decided)

88.9%

Swindon all applications (4,413 decided)

94.8%

88.9% 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

Rear Extension (1,205 decided)

93.7%

93.3%

92.7%

New Build (249 decided)

90.0%

Conservatory (233 decided)

96.1%

Dormer (178 decided)

89.9%

89.9%

93.4%

89.9%

Outbuilding (77 decided)

94.8%

96.9%

92.3%

HMO (14 decided)

92.9%