I used to sit on admission appeals as a lay member and have done for the last three years, but I'm not sitting on any this year as we're moving out of the area in two weeks time.
Looking back on my notes, there are only three criteria on which we could allow an infant class size appeal:
- The child would have been offered a place if the admission criteria met the mandatory requirements for admission criteria specified in the School Admissions Code.
We've never had an appeal on these grounds, as any school which sets its own admission criteria (i.e. is aided, foundation etc), still has to send its admission policy to the authority to check they meet the code. If they don't, they're asked to change it, and if they refuse then the authority will take the case to the adjudicator. This would all happen long before the admission process starts.
- The child would have been offered a place if the admission policy had been implemented properly.
Most likely to win on these grounds
- The decision to refuse admission was not one that a reasonable admission authority would make in the circumstances of the case.
Looking at my notes, I've personally sat on 19 infant class appeals, and of the ones I've sat on only one has been allowed on these grounds. I cannot tell you the exact reason why the panel made the decision to admit over ICS, for obvious reasons, but there were exceptional mitigating circumstances. In reality, unless you exceptional circumstances, it is highly likely your appeal would be unsuccessful. If it's just a case of you prefer this school, then you need to prepare youself for an unsuccessful appeal.
Please note, I'm not saying you definitiely won't be successful, and I'm certainly not saying you shouldn't go through with the appeal. However I do think you need to prepare yourself for the most likely outcome.