Annex approval rate in Swindon

Swindon approved 91.7% of annex applications, based on 24 decisions analysed.

Last updated: August 2026

91.7%

annex approval rate

Annex decisions

Approved

Refused

95.0%

Swindon overall

Annex applications are refused more often than the Swindon average (95.0%), suggesting the council scrutinises these projects more closely.

How annex compares in Swindon

Annex (24 decided)

91.7%

Swindon all applications (4,609 decided)

95.0%

91.7% 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 (1,254 decided)

93.9%

93.7%

93.2%

New Build (264 decided)

90.5%

Conservatory (236 decided)

96.2%

Dormer (187 decided)

90.4%

90.7%

94.1%

90.3%

Outbuilding (87 decided)

95.4%

97.1%

93.0%

HMO (16 decided)

93.8%