Boundary Lines can change if you are planning for younger children. You can also request a transfer, but there would not be any bus service. Neither of these things should be counted on as transfers will not be allowed if schools are at capacity, and the boundary lines are too difficult to predict.
I do a lot of work in the area for families requesting both Doss and Highland Park. My wife is a school teacher, and they are both great schools. Please let me know if you would like any additional information on Cat Mountain or have your own personal website set up for only available homes that are zoned for a particular school.