my autistic (and probably ADHD) dd is currently looking at uni. She is in year 13.
She has decided to take a gap year, she recognises that she is not yet ready to be 100% independant. But also that she is quite burnt out after 2 years of A levels, and needs time to regroup. She also recognises that knowing she has to leave home in 2 months would have an impact on her exams in June.
For her gap year she is looking at an internship in her church, or a job and then some courses she wants to do eg BSL. In that year she is also going to learn how to cook and look after herself. You might ask why she hasn't done that already, (as her older siblings did) and the answer is that she has no capacity outside of school.
In terms of uni, she will receive DSA (disabled student allowance) alongside the PIP she already gets, and DSA comes will loads of support at uni, an academic mentor, access to all sorts of tech (eg note taking support tech) etc.
Every uni we have visited have also been fine with us asking things about her choosing accommodation (she will need ensuite) and possibilities of staying in uni accommodation in second year due to the stress of finding friends to share with (she has huge issues around friendships) and they have all been amazing.
2 that have stood out from the ones we looked at were Sussex, which is also small and friendly, and Leeds. My friends severly autistic dd with high medical needs has gone to Bath and they have a LOT in place for disabled students there.
Just to say, I fully expect to need to travel to visit her once a month (or more) as needed in the first year, to help her 're-set'. (room tidy, food shop, clean sheets, put clothes in wash). Only as long as she needs it, which by then might not be at all, but she needs that at home at the moment still. I have 2 older ones who I waved off to uni and expected to get on with it, so I am not remotely a helicopter mum, and need to recognise what my dd's needs are, rather than what the world thinks an 18 year old can do.