It is understood that the 62-year-man whose body lay in a sheltered housing flat for five weeks did not avail of a liaison service offered by Dublin City Council.
The remains of Brian Corr were found his flat in Beggars Bush Court, Ballsbridge after neighbours raised the alarm.
The council runs a liaison service for older people which involves weekly visits by council staff to check on the tenants and offer advice.
But for privacy reasons tenants can decide not to be visited, according to a statement from the council issued this afternoon.
The council also has a 24-hour Care-Call response system linked to emergency services fitted in all units in Senior Citizen Complexes which can be activated by a number of panic alarms.
It says it also responds to a call from relatives or other tenants who raise concern.
Last January an elderly couple died from hypothermia in a sheltered housing unit in Drumalee Court, Stoneybatter. Both also had health problems
The council has a total of 3,000 such sheltered housing units in 100 different communities across the city.
The stated aim of the housing system is to provide independent living in a safe environment.