The council, which published its five-year homelessness strategy last week, says it plans to build new temporary accommodation and hundreds of new social and affordable homes.
It has also provided Wi-Fi access to its hostel rooms and reviewed policies to enable more rough sleepers to keep their pets when entering accommodation.
The council developed the passport scheme with help from people with first-hand experience of homelessness, according to the Local Democracy Reporting Service.
It was first trialled three years ago for residents who were living independently after being homeless and will now be rolled out further.
Among all London boroughs, Camden has consistently held the second-highest homelessness rate, behind Westminster.
Councillor Anna Wright, the council’s cabinet minister for health, said its strategy recognised “the significant impacts of homelessness on health and wellbeing”.