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of parking appeals against Harrow are won
Independent adjudicators decided 485 appeals in 2024-25 and allowed 228 of them. That is 2.4 points below the London average of 49.4%.
121 of those 228 wins were uncontested. In 53.1% of the appeals Harrow lost, it put up no defence at the tribunal at all — less often than the 58.5% London average, so expect it to defend. 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 Harrow, 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 47%, not lower. Among the 33 London authorities with enough appeals to compare, Harrow ranks 17th for how often drivers win.
Appealing a Harrow 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 |
|---|---|
| Croydon | 50% of 408 |
| Kensington and Chelsea | 49% of 247 |
| Brent | 47.6% of 496 |
| Harrow (this page) | 47% of 485 |
| Waltham Forest | 45.7% of 586 |
| Richmond Upon Thames | 45.2% of 188 |
| Bexley | 44.6% of 193 |
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.