If we don't take him. Which seems to be the best option.

He'd be going to my boyfriends mum.
She lives in a ground floor flat with 2 cats and a big garden at the foot of the torrs(coast line) and woods.
Think he'd be happy there.
He's 17 years old so wont be happy with any change, just trying to do whats best.
Thanks for all the help.