depends on how you look at it and the time span you wanna use to
measure the returns...
sometimes... i think it's bullshit...
sometimes... i think it's worth a try...
sometimes.. it depends on the green design by the architects and
engineers...
some developers wanna get green mark platinum so that they can
get the incentives and also price it higher...
some developers wanna get green mark but dont wanna fork out the
extra bit...
some developers damn cao kuan one...