ruling by the new york city human rights commission is a blow for stonehenge village on manhattan 's upper west side .
60percent of the tenants pay reduced rent-stabilized rates .
the rest pay market rates of $ 3,500 a month for a one bedroom apartment .
most rent-stabilized tenants are over age 65 .
this is the latest battle between property developers who get taxes breaks for building rent-stabilized units and the city .