If you make an application stating social and medical reasons for the school being the best / only one suitable, could that actually count against you?
My child has a hip condition and sometimes finds it hard to walk, uses crutches, but is generally independent. We applied to our nearest school citing it as being the only one with a manageable walking route and other factors. Our consultat's letter, as professional evidence, stated that occasionally a wheelchair is necessary (which is true - it's about once every few years).
We are almost cedrtainly within catchment for the school on distacne, but could the school decide that it is not wheelchair accessible and decline our appplication, even if we would have been eligible under the distance criteria?