Ipswich Qld has an absolutely fantastic area for what you are asking for.At the moment there are some massive corporations International and local building in Ipswich.

Apparently Cavalier Homes was telling me some big names are developing everything from shopping centres through to INternational motels. A huge International Aliminium company built a massive plant on the Warrego hwy.

Go to Tivoli, Ipswich Qld there is a new warehouse/industrial area that was built just recently near Booval. Its accessed from a very impressive bidge from the main shopping area of Booval.

I would think it would depend on a whole host of things. For example I bought an averange block of land in an average street, nothing out of the ordinary. The guy next door also bought the block for the same price as I, the blocks where the same size.
I made $420K in two years after building, he made $80K in two years after building. That's difference between experience and no experience.

Building UNits/houses whatever will always reep more rewards than something already built UNLESS you are buying them in an extraordinary situation.