So I have a nice three stall garage about 1200 square feet but I have seen people add on a detached garage next to the main attached garage and it can look cool my main function is to get rid of all the **** in the garage i have the perfect back out pad on my driveway which I could extend. I need to do this on a budget since the wife isn't too keen on the idea. I can go back about a max of 22'. Was going to go down and check local building code to see any other regulations. Thanks for any ideas pictures etc. this is my first post been looking around on here for quite some time and very impressed with all the cool stuff on here.
That is the first thing that you will have to do. Permits vary from town to town, state to state, and almost anymore from street to street. When we lived in town, we weren't allowed to take up any more than what the house footprint was. We were allowed though to build right up to the property line.
With the house we live in now (in the country), I was allowed to build as big as I wanted, but I had to leave an area as large as what my leach field was already because of possibly having to replace it in the future. I also had to stay 10' off of the property line between me and the neighbor, That was maybe 10 years ago. I would imagine that today things have tighter restrictions.
So it all boils down to City restrictions, County restrictions, and Township restrictions. Just make sure you check with the proper authorities on what you can and cannot do. And GET IT IN WRITING!!!! The reason I say that is when I built my garage, I showed plans to the Planning Commission in town. Everything was approved. I had to get with the Township though to get a Township permit. I showed them the plans and all was good.
BUT.......we live on a County road. The County stopped after everything was done. I was supposed to have a driveway permit. WTF

In our county today, I was informed, that you are only allowed one driveway entrance and egress. I had three. A circular drive in front of the house, and another drive from my detached garage. I could have been made to take it out, but after a long talk, he let it slide. I've since taken out the circular drive though.