Side extension planning approval in Allerdale
Based on decisions in the last 5 years, as of 15 May 2026.
We hold no refused side extension decisions for Allerdale in this period, so treat a full approval rate with caution. The council's own portal has the complete record.
Of 55 side extension planning applications decided by Allerdale in the last 5 years, 100% 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 Allerdale
- Extension : 100% approved, no recorded refusals (284 decided)
- Rear extension : 100% approved, no recorded refusals (104 decided)
- Change of use : 100% approved, no recorded refusals (76 decided)
- Demolition : 100% approved, no recorded refusals (71 decided)
- Tree work : 100% approved, no recorded refusals (64 decided)
- Listed building / conservation : 100% approved, no recorded refusals (57 decided)
- Two-storey extension : 100% approved, no recorded refusals (47 decided)
- Porch : 100% approved, no recorded refusals (40 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for Allerdale, matched to a type of work from the application description. We lead with the last few years so the figure reflects how Allerdale 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.