We bought a small 6' x 4' shed and put it up in a sheltered area at the back of our meeting room where the cats were used to being fed.
We've cut a space for a cat flap in the door but we haven't fitted one yet. It might be best if they get the hang of going in and out first.
Their food will be put inside the shed from now on - this is Psycho and Felix tucking in this morning.
Cats Protection very kindly donated some 'Cat Castles' for them to sleep in.