Homelessness or houselessness – also known as a state of being unhoused or unsheltered – is the condition of lacking stable, safe, and adequate housing. People can be categorized as homeless if they are:

living on the streets, also known as rough sleeping (primary homelessness);
moving between temporary shelters, including houses of friends, family, and emergency accommodation (secondary homelessness); and
living in private boarding houses without a private bathroom or security of tenure (tertiary homelessness). have no permanent house or place to live safely
Internally Displaced Persons, persons compelled to leave their places of domicile, who remain as refugees within their countrys borders.The rights of people experiencing homelessness also varies from country to country. United States government homeless enumeration studies also include people who sleep in a public or private place, which is not designed for use as a regular sleeping accommodation for human beings. Homelessness and poverty are interrelated. There is no methodological consensus on counting homeless people and identifying their needs; therefore, in most cities, only estimated homeless populations are known. In 2005, an estimated 100 million people worldwide were homeless, and as many as one billion people (one in 6.5 at the time) live as squatters, refugees, or in temporary shelter, all lacking adequate housing. Scarce and expensive housing is the main cause of rising homelessness in the United States.
This particular study followed 107 long-term-homeless residents living in Orange, Osceola or Seminole Counties. There are similar studies showing large financial savings in Charlotte and Southeastern Colorado from focusing on simply housing the homeless. "In general, housing interventions had mixed economic results on cost-analysis studies. Innovative solutions
Los Angeles conducted a competition promoted by Mayor Eric Garcetti soliciting ideas from developers to use bond money more efficiently in building housing for the citys homeless population. The top five winners were announced on 1 February 2019 and the concepts included using assembly-ready molded polymer panels that can be put together with basic tools, prefabricated 5-story stack-able houses, erecting privately financed modular buildings on properties that do not require City Council approval, using bond money to convert residential garages into small apartments which are then dedicated to homeless rentals, and the redeveloping of Bungalow-court units, the small low-income iconic buildings that housed 7% of the citys population in the 1920s.In the neighborhood of Westlake, Los Angeles, the city is funding the first transitionally homeless housing building using "Cargotecture", or "architecture built from repurposed shipping containers." The Hope on Alvarado micro-apartment building will consist of 4-stories of 84 containers stacked together like Lego bricks on top of a traditionally constructed ground floor. Completion is anticipated by the end of 2019. Political action
Voting for elected officials is important for the homeless population to have a voice in the democratic process.There are also many community organizations and social movements around the world which are taking action to reduce homelessness.