Rear extension planning approval in Knowsley
Based on decisions in the last 5 years, as of 25 Jun 2026.
Of 533 rear extension planning applications decided by Knowsley in the last 5 years, 98% 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 Knowsley
- Extension : 97% approved (805 decided)
- Side extension : 96% approved (277 decided)
- Demolition : 98% approved (254 decided)
- New dwelling : 92% approved (194 decided)
- Two-storey extension : 98% approved (177 decided)
- Change of use : 89% approved (111 decided)
- Boundary wall / fence / gates : 92% approved (99 decided)
- Porch : 99% approved (92 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for Knowsley, matched to a type of work from the application description. We lead with the last few years so the figure reflects how Knowsley 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.