build new houses to make equity?

as a small builder i was wondering after reading some books that many are trying to find homes with positive cash flows and to hold them until their prices go up to maximise against their equity, this taks time, so wouldnt it be easier or quicker (as a builder) to build small homes on new developments or established areas with permits on rear of block type blocks and then rent /lease them if u can servise it that is and automatically call in a valuer and instantly have about $80,000 equity?

please resond

small time builer