Shelter has called on the Scottish Government to set up an expert group tasked with producing a plan for the delivery of homelessness and housing advice services over the next decade.
The charity said such a plan should be designed around people.
It should also include tailored support for at-risk groups, such as young people leaving care, and a pathway for people to get out of crisis housing services.
The call for the plan comes ahead of the charity's annual conference in Edinburgh, which will see experts focus on the impact of bad housing on health inequalities in Scotland.
The Scottish Government has already achieved its commitment to give everybody assessed as unintentionally homeless by a local authority the legal right to a settled home.
Graeme Brown, director of Shelter Scotland, said: "Scotland has the most progressive homelessness legislation in the world but that doesn't mean that homelessness has gone away."