Unfortunately in the Willow Glen area, you will not be able to choose high schools. I suspect that you may be interested in choosing a high school in an adjoining district rather than the school assigned to this home, and that is absolutely not going to be allowed. Transfers within the same district is very difficult, but transfers between districts are simply not allowed.
If you have a specific high school that you would like a family member to attend, then it's best to look for a home within that school's boundaries for the best chance to attend that school. Hoping for a school transfer is extremely uncertain and often not granted.
Work with a great agent who knows the school districts and can provide you with insight regarding the district's policy regarding attendance and admission, so the answers you need are close at hand. Good luck!
Allison James Estates
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