More than 100 pupils still do not know which school they will be attending - a week into the new term.
The schools shake-up has led to the district's biggest ever scramble for places as three year groups all enter secondary school at the same time.
Bradford Council's principal officer for school admissions, Martin Jackson, said between 150 and 200 appeals over admission decisions were still outstanding.
Some were multiple appeals concerning the same pupils, but the total did not include any from Bingley Grammar, Thornton Grammar, Laisterdyke High, Hanson and Oakbank schools, which all control their own admissions and were all heavily oversubscribed.
Two independent appeals panels began sitting yesterday and are expected to continue at least until the end of the month just to get through the council's backlog.
"It is normal for panels to go into September but we are three times as busy this year because of the reorganisation," said Mr Jackson.
He said he appreciated the dilemma for parents appealing against a school already allocated to their child, who have been left in limbo. He said he understood many pupils were kept off school because parents did not want to have to buy two uniforms or make their children start a new school twice.
But he said: "Our advice has to be that they should send their children to school at the beginning of term. They might be able to reach some agreement with the school over uniform."
He said other oversubscribed secondary schools included Queensbury, Salt Grammar, Rhodesway and Beckfoot. Buttershaw High School had been particularly notable as this year it was heavily oversubscribed for the first time.
Acting head teacher at Buttershaw, Brian Ross, said: "We are absolutely delighted that we are oversubscribed in all three new years.
"I can only put it down to the fact that we enjoy a good reputation for looking after our children and that, generally, we hope to make their lives as happy as possible. I think this is recognised in the locality."
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