Not knowing the specifics of your lot, I'd reserve judgement on "what's best". If its a simple job of carving out some additional lots leaving your home in place on a "standard" lot, the chore is simple. If you have to remove your home to get the max number of lots, the question becomes more complex. Then you have to factor in what you loose by removal (the value of your home) compared to what you gain by add'l lots.

I suspect you're going to have to consult with someone, and spend a few $, re lot layout at some point. The issue of setbacks, access road/driveway, etc. needs to be addressed. You might be able to do some of that yourself, but it will require some research into how to carve it up. The more you can do yourself, the more you make, eventually, but it needs to be weighed against any complexity of the situation that requires some expertise. Sometimes its worthwhile to joint venture the project with a reputable builder who can provide that knowledge.

I would look into seeing how much I could do myself, first and then see if its too far over my head or if I want to invest the time in the project. The returns are great, but this is what I meant when I said you'd be earning your gains. Keep on with your research until you are stuck..or maybe you'll make it all the way to completion!

Feel free to ask questions as you go. I'll tell you what I know, but its not something I am intimately familiar with off the top of my head.