An EHCP is good as it will give you more options.
Trinity has an Autism resource base. The Headteacher is a powerhouse. She has also been there a long time and is well established. - Shaw area.
Park House Sen department- anecdotally I have heard good things about the Sen department. A while ago there was a lot of complaining that the senior leaders were too harsh but they have just got Ofsted Outstanding. And I think they were just establishing control after a really tricky time . -
You do have to look at the catchement area for Park House and St Barts because they are geographically 5 mins apart BUT you can live nearer to one school but be in the catchement for the other.
St Barts - this is the most over subscribed school in the area. It has a been outstanding for years. It really depends on who you speak to - my children went there and I rate it highly. But, I didn’t have any contact with the Sen department. They do things well with lots of extra curricular activities. I have been impressed by any staff I have met, although their uniform rules are antiquated and annoy me a lot - especially from a Sen perspective.
Kennet - It’s in Thatcham. The couple of people I know who work in the Sen department there are lovely, professional and hardworking.
The Clere (Hampshire) don’t know anything to give you any advice.
The schools in Newbury really are the best the state system has to offer in my opinion. I have worked as a teacher in West Berkshire, Oxford and Hampshire and on the whole the general educational standard is high and behaviour is good.
So I think you are making a great choice!