Side extension planning approval in Lancaster
Based on decisions in the last 5 years, as of 26 Jun 2026.
Of 47 side extension planning applications decided by Lancaster in the last 5 years, 81% 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 Lancaster
- Extension : 86% approved (214 decided)
- Rear extension : 87% approved (118 decided)
- Tree work : 100% approved (78 decided)
- Demolition : 95% approved (73 decided)
- Listed building / conservation : 94% approved (53 decided)
- Loft conversion : 83% approved (48 decided)
- Change of use : 64% approved (47 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for Lancaster, matched to a type of work from the application description. We lead with the last few years so the figure reflects how Lancaster 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.