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of parking appeals against Hillingdon are won
Independent adjudicators decided 172 appeals in 2024-25 and allowed 143 of them. That is 33.7 points better than the London average.
127 of those 143 wins were uncontested. In 88.8% of the appeals Hillingdon lost, it put up no defence at the tribunal at all — noticeably more often than the 58.5% London average. Those tickets were not marginal decisions. The authority had already given up on them, and the appeal was the only thing that stood between the driver and a cancelled charge.
What this does and does not tell you
These are appeals that went all the way to an independent adjudicator against Hillingdon, which is the final stage. They exclude every ticket cancelled earlier, when you first challenge it or make formal representations — and that is where most successful appeals actually end. So the real chance of getting a ticket cancelled somewhere in the process is higher than 83.1%, not lower. Among the 33 London authorities with enough appeals to compare, Hillingdon ranks 1st for how often drivers win.
Appealing a Hillingdon ticket?
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- Find your contravention code. Every PCN carries a two digit code that says exactly what they claim you did, and what they have to prove. Look yours up.
- Check the deadline. Discounts and rights both expire. Work out your dates.
- Know which stage you are at. How council PCN appeals work, and what a Notice to Owner means.
- Do not just ignore it. What actually happens if you do.
How nearby authorities compare
| Authority | Appeals won |
|---|---|
| Hillingdon (this page) | 83.1% of 172 |
| Redbridge | 70.1% of 1,804 |
| Westminster | 66.1% of 933 |
| Hounslow | 66% of 362 |
| Lambeth | 57.4% of 1,148 |
| Lewisham | 57.3% of 328 |
| Havering | 56.1% of 620 |
All 33 authorities, with sources →
Source: Environment and Traffic Adjudicators (London Tribunals), annual parking statistics 2024-25. Figures are for penalty charge notices only; the same release covers clamping and removals separately, in numbers too small to quote. A tribunal outcome depends on the evidence in that particular case, so nothing here predicts yours.