Extension planning approval in Swindon
Based on decisions in the last 5 years, as of 25 Jun 2026.
Of 682 extension planning applications decided by Swindon in the last 5 years, 91% were approved. This is the council's track record for this kind of work. It is a useful gauge before you apply, not a guarantee for any one application.
Other work in Swindon
- Rear extension : 92% approved (495 decided)
- Tree work : 98% approved (294 decided)
- Change of use : 86% approved (228 decided)
- Listed building / conservation : 99% approved (185 decided)
- Side extension : 92% approved (169 decided)
- Loft conversion : 91% approved (136 decided)
- Demolition : 94% approved (131 decided)
- New dwelling : 85% approved (128 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for Swindon, matched to a type of work from the application description. We lead with the last few years so the figure reflects how Swindon decides today, with the longer record as context. A rate is only shown once there are enough decided applications for it to be reliable. We publish aggregate figures only, never an individual application or applicant name. Read the full method and limits.