I called the police station (non-emergency number, of course...hehe) and asked them what the rules were. You can have up to 6 hens and no roosters. You have to apply for a permit (also available at the police station) and the animal control lady has to come inspect your coop. To cover my bases, I actually called the animal control lady and asked her what they were looking for as far as coops go. First of all, she said to go ahead and turn in the application, but don't look for her very soon. I asked her what I'm supposed to do with my chickens in the mean time...there was no way they were going to stay in my garage any longer than necessary! She said to go ahead and put them in the coop when they were ready and she would show up eventually. A month or so later she showed up. She just wanted to make sure the coop was preadator proof, but didn't really seem too educated about chicken keeping.
Oh, also your hens have to be contained in your back yard.
And just a heads up....if you have a dog without a license, she'll get you for that, too. Ask me how I know...
So...chicken permit = free. Dog license = $20.00.
Edited to add...you also need to make sure you don't have any homeowners association rules preventing chicken ownership.