you've missed the boat on property development, house prices are at there highest, interest rates are at there highest (well for a number of years at least) less people are moving house that ever in history and most "cheap" property is snapped up by existing property developers through back hand deals at estate agents...
anything left is too expensive to make any worthwhile profit on
you could look abroad but over saturation on the property market by new build developers has left little room for investment opportunities
if only we could go back a few years with this knowledge eh?