Loft conversion planning approval in Lambeth
Based on decisions in the last 5 years, as of 12 Jun 2026.
Of 578 loft conversion planning applications decided by Lambeth in the last 5 years, 78% 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 Lambeth
- Extension : 81% approved (1,990 decided)
- Demolition : 88% approved (891 decided)
- Roof / fenestration : 83% approved (895 decided)
- Rear extension : 78% approved (873 decided)
- Basement : 80% approved (571 decided)
- Tree work : 93% approved (501 decided)
- Side extension : 84% approved (477 decided)
- Windows & doors : 80% approved (643 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for Lambeth, matched to a type of work from the application description. We lead with the last few years so the figure reflects how Lambeth 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.