appellants anchor their appeal on the proposition that the bel-air village area , contrary to plaintiff- appellee 's pretension of being a strictly residential zone , is in fact commercial and characterize the restrictions contained in appellant filley 's deed of sale from the appellee as completely outmoded , which have lost all relevance to the present-day realities in makati , now the premier business hub of the nation , where there is a proliferation of numerous commercial enterprises established through the years , in fact even within the heart of so-called `` residential '' villages .