I would contact the schools via email. Once you have made contact, you can then ask questions, ask about visiting, send documents (if the current EHCP is poor, it might not be wise to send that or to also send more up to date evidence and explain). However, some schools don’t allow parents to visit until formally consulted. Even then, some don’t allow visits until actually named. Some only allow visits on pre-arranged open days.
Won't it be a waste of time if the school say they can't meet needs after the visit?
Some schools visited may not be suitable once you have visited. That doesn’t mean it is a waste of time. Visiting schools helps you get a feel for different placements, what will work, what won’t, what types of cohorts are similar, etc. Plus, unless the school is wholly independent, just because they say they can’t meet needs doesn’t mean they can’t be your preferred placement and it doesn’t mean they can’t be named in an EHCP.
If a school is designated for SEMH or SLD, their entire curriculum, staff training and therapeutic resources are tailored only for that specific profile.
Not always.
For example, SLD schools will often have a not insignificant proportion of pupils whose primary need is actually ASD. They also happen to have SLD too or might not even have that formally identified, but it is clear that it still applies and that is the right type of school for them. In some SLD schools, most pupils have an ASD diagnosis and have that as primary need. Some SLD schools have a few MLD pupils &/or PMLD pupils because despite not having SLD, it is the right placement for them.
Plus, even within one primary need, the approach, resources, environment, etc. required can vary between DC. For example, what works for one DC whose primary need is SEMH can be actively harmful for another whose primary need is also SEMH. So just because a school is a SEMH school doesn’t mean it is the right school for the individual child.
Identifying my child's exact primary functional need is the only way to ensure I target a school with the correct designation
I disagree. I stand by saying the overall presentation needs to be looked at rather than just focusing on primary need. Just knowing the primary need isn’t going to ensure you get the right school. You need to understand all needs and provision required. Just understanding primary need can narrow the potential options, but on its own does not ensure you target correct schools. For example, ASD is a primary need. But ASD schools (not SEMH, that is a different primary need in its own right) vary hugely. Just knowing the primary need is ASD will not ensure you target the right school. Just as SLD schools can vary significantly and PD schools can and…
an autism diagnosis alone could see him mistakenly placed in an SEMH school that is completely wrong for his learning and physical profile.
For many DC with ASD, SEMH schools would be the wrong type of placement. ASD and SEMH are different primary needs. But that should be clear from B&F of the EHCP even if the EHCP didn’t state the primary need. That is because B + F = I. The placement named in section I is the logical conclusion of B&F.