When a planning application is refused, applicants can appeal. On the Isle of Man, 3,807 appeals have been decided since records began, with a success rate of 33.4%. This article looks at what the data shows, using figures from PlanningPortal.im.

Appeal Outcomes

Metric Figure
Total appeals decided 3,807
Allowed (won) 999
Dismissed (lost) 1,894
Success rate 33.4%

One in three appeals succeeds. That is a meaningful number. It means appeal is worth considering seriously when a refusal feels wrong or the reasons given are weak.

When Appeals Tend to Work

Appeals are more likely to succeed when the refusal reason is arguable on policy grounds, when similar applications nearby have been approved, or when the applicant can provide additional information that addresses the concern. They are less likely to succeed when the proposal is clearly contrary to adopted policy or significantly out of character with the surrounding area.

The Process

Isle of Man planning appeals are heard by independent inspectors appointed by DEFA. The process typically runs several months. Applicants can appear themselves or use a planning consultant or solicitor.

Searching Appeal Decisions

All decided appeals are searchable on PlanningPortal.im, which can be useful when building an appeal case or assessing precedent.

Data from Isle of Man Government / DEFA via PlanningPortal.im.