Honestly, I have a similar situation under my deck and I've been thinking of using it as a semi-protected space for a feral cat colony! Not everyone's cup of tea, I'm sure. But I'm interested in "trap, neuter, release" aka TNR to help cut down on the feral population. I'd put little shelters under there and it would be my food and water spot as well. And if I set the trap in the right corner, I can monitor it from my window.
I'll need the neighbors' "permission" - or at least a lack of freaking out on their part and I haven't worked up the courage yet to ask....