We're currently moving out the area but did a lot of research.... my DD has severe ADHD, responds well to medication, but tough outside of the daytime. We looked at a number of schools, including talking to parents we know at them.
We did consider St Theresa's, as it was logistically good for us, plus DS could do Cranmore, but under the bonnet there are seemingly huge issues, staff problems, merger issues, parent concerns about how its being run, small numbers in the upcoming year 7 (i heard 30) and eventually decided against it.
We did look at priors field, briefly, but attended their open day and there was basically no one there, it seems lovely, and would probably suit your DD (and mine) well, but I wouldn't be surprised if it isnt around for a lot longer. The estate looked so tired and ive heard they also have a small year 7, maybe 20 or so, for september.
Longacre would have been a great choice, but very sad it is closing!!
Don't know Seaford.
Frensham Heights is supposed be be very good, easy going and chilled, but not sure about their sen provision as it was to far away to consider.
In the end we were considering Tormead, very impressed from start to finish, it seems a happy and academic place, without the guildford dinner table 'my child goes to ghs/rgs, where does yours go?' conversation starter. Which piss3s me off indecently... so glad to be leaving Surrey! 😂 But I think from your demographic is might be too far away?
Not sure about St Cats, they seem to have changed tack a bit and might be worth a look? Once considered the no.2 academic school in the area, no one really talks about it any more. But ive heard the new head is good and has recognised that, and their focus on pastoral care etc has improved.
Good luck and I hope you find the perfect place. Weve had a rough ride with our DD, shes been a legend, but we've seen the hard side of crap schools who dpnt understand or care, so wouldn't wish this decision on anyone. God speed!