Councillor Roberts (left) said tenants would benefit.
Nearly 3,800 council homes in the county of Conwy have been transferred to a housing association.
The transfer comes nearly a year after tenants voted by a narrow margin in favour of their homes being looked after by an independent body.
Council leader Dilwyn Roberts said the transfer would mean many homes would be improved.
Cartrefi Conwy has promised short term improvements as well as £237m being invested over the next 30 years.
Five out of the 22 local councils in Wales have now transferred stock to housing associations.
Following the transfer all Conwy council homes will now be in the ownership of the not-for-profit housing association Cartrefi Conwy.
Conwy council leader, Dilwyn Roberts, said he was confident tenants would benefit from the transfer.
"Not only will tenants get a socially responsible landlord but that they will also receive improvements to their homes that they never could have benefited from had they remained with the council," he added.
Pam Lonie the chair of the board at Cartrefi Conwy said: "Setting up this organisation not only means improved homes in the short term but its for future generations too, with £237m to be invested over the next 30 years."
Andrew Bowden, Cartrefi Conwy's chief executive added: "This is an extremely exciting time because we can now start delivering on the promises made to tenants."