Looking for boarding school for happy but mildly dyspraxic 11 yr old boy, overseas parent.

Also, I'd have thought co-ed would be preferable, assuming both children will eventually be attending.

Fair enough, happy.

I'm not in the market for private education let alone boarding for ds

There do seem to be a lot of pupils coming and going at the weekends though (observed as ds has an activity there) and Bath has got to be a good place to be if you are full-boarding. Also I like the families who have children there; ds went to (state) primary with them and they're lovely - creative, active people.

(OP happy knows far more about private ed that I do!).

I too have heard good things about Kingswood but I do know few full boarders.

Have a look at Merchiston Castle in Edinburgh. Great rugby school, non selective entry (Common Entrance or other tests as appropriate), great learning support and many overseas boarders from Hong Kong although mostly older/ 6th form. Focus is on all round education where top boys highly achieving at A levels (although located in Scotland they do the English curriculum GCSE/ A Levels) but loads of extra curricular opportunities for non academic boys in sport/ drama/ music/ CCF/ Duke of Ed etc. In senior school (13+) is about 70% boarding 30% day. Rated Excellent for pastoral care/ boarding provision by local inspection authority.Merchiston

I have a mildly dyspraxic lad myself, who sounds similar to yours other than in that although he can read very well, the lazy bugger cannot be arsed with books (unless they're about cars or motorsport ). So yes I understand that dyspraxia and dyslexia are not the same!

Anyway, I have a few friends with children with dyslexia who are day pupils at Kingswood, which is a co-ed day and boarding school in Bath. They are very happy with it. I don't know what the boarding situation is and I don't have direct personal experience of it, but it's worth looking into imo. Also it looks like Hogwarts.

Hope you can understand what Im saying the autocorrect is changing the meaning! I am dyslexic and write nearly all words around the wrong way and those I don't spell them incorrectly!

Children who struggle to write "fluently" (like my DS1) will struggle as they go further up the school and by yr 11 when they sit their GCSE's will really struggle and are at risk if significantly under performing. You do need him assessed because the if your lucky the appropriate help can be put in place to help him most importantly extra time and being allowed to use a lap top. You cannot have wither of these in CE or public exams without an ed. psych saying he needs them.
Where does your prep school suggest? Full boarding schools or where the majority full board are few and far between in the general scheme of the things and many of the obvious ones are single sex and very academic which again IME does not suit children with your DS's profile. St Edward's is mainly full boarders and is renowned for its high standards of pastoral care and happy children I believe children with learning difficulties are welcome. Marlborough is mainly full boarding as is Kings Canterbury again both are popular but I don't know about their learning support. You must ask at all of these very probing questions about what they will do again another reason why you need an ed. psych report becasue recommendations will be made. Ampleforth I understand is also very good if you can do the RC thing I personally couldn't although I do know you don't have to be RC and has I believe quite a few full boarders ask.