The pensioner, who established a communal library service in the flat's foyer, had been spat on and assaulted for standing up to the "bad apples".
"I realise these people need to live somewhere but why put them in a big complex with so many other residents? Some of the tenants are too scared to speak out."
He said complaints to his Housing NZ landlords had fallen on deaf ears.
"They're obliged by law to look after their tenants and to take steps to ensure residents don't disturb their neighbours. Instead we've become a halfway house for parolees and criminals."
Mr Grant said one resident had already moved out, while others were contemplating leaving.
"Yes, I have thought about it but then why should I move out? Most of the residents here are beneficiaries, have ongoing health problems or are elderly. Why should they have to move? Housing NZ obviously thinks we just don't count for much."
Housing NZ regional manager Helen Walker said she was aware of problems at the complex and was "actively working to resolve them".
"This includes encouraging other tenants to let us and the police know about any anti-social behaviour," Mrs Walker said.
"We have had only one instance of a parolee being a tenant at this address, and that was approved by the Department of Corrections. However, this tenant has since found other accommodation."
Police callouts to Star Flats
September 1 - suspicious behaviour
September 5 - suspicious behaviour
September 18 - youths wrecking fire extinguishers
September 20 - fighting on grass in front of flats
September 22 - assault
October 24 - inquiries related to a crime (not stated)