What to do... When i've build over the whole lot? No more space to build in other words. What do you do then?
Wow silly me lol I thought we were talking ts2. I think I'm staying up to late. Didn't read the top lol
You can still try to change low density zones for high density ones in residential areas first (make sure your roads can handle it first). After that, do the same to commercial areas. If you have some dirty or manufacturing industries, do the same (watch for pollution). If it's already all at done.... There's nothing much you can do... maybe.... save your game and have fun with disasters.... Or if you have Rush Hour... do the missions...