in and out like a cat or a dog

This is how my city hall bylaw office stated I could keep my chickens. How does one keep cats in and out? free range them unless they want to come in? My girls are outside for the first time ina few weeks, hopefully to stay . Looking into a dog house igloo type shelter, I have dogs We just need a proper fence and our whole yard is chicken proof now, a nice 6 foot wood fence with hardware wire burried under it so nothing can get in and eat the chickens The bylaw officer was out last week when we were building the fence he took pictures of my backyard( sneaky like during a bad rainstorm when he knew we wouldn't be outside!) and all the rubbish from building the fence, hopefully I don't get in trouble for that! I have to wait until my FIL has spare time to help me remove it because we don't own a trailer or do we have a truck.

 

We don't have many coons on our block because everyone has big dogs, this year |I haven't even seen a skunk in my yard.I will be housing them safely at night, never seen a coon during the day, not many rabid animals here( except the bylaw guy).