
This model prioritizes getting individuals their basic needs before all else, alleviating their critical needs for things like food and shelter first before attending to secondary needs such as finding a source of income or attending to substance abuse issues.

Volunteers and government workers who work to provide housing through street outreach oftentimes operate under the Housing First Model, which became prominent in the United States after 2010. A lingering concern in the field of street outreach to unhoused is whether “downstream” service work outweighs the need for “upstream” advocacy work. Outreach is not intended to be a one size fits all answer to homelessness, as the population of people who are unhoused is very multifaceted in their needs and backgrounds and the majority of outreach programs face significant limitations. However, proponents of outreach argue whether it is better to emphasize process (outreach as seeking to establish a personal connection that provides the spark for the journey back to a vital and dignified life) or to emphasize goals (meeting individuals on the street to increase their access to services). Most agree that outreach serves a vital function, filling in a gap in access to services and helping those who face heightened barriers to care. The purpose of street outreach is heavily debated. The core elements of effective street outreach include being systematic, coordinated, comprehensive, housing-focused, person-centered, trauma-informed, culturally responsive, as well as emphasizing safety and reducing harm. Regardless of its form, the essence of street outreach is the desire to meet people where they are at, build deep trust and connections, offer support, and reinforce the human dignity and respect that is deserving of all people. Street outreach comes in different forms, from people walking around carrying supplies or offering resources, to mobile health clinics with teams of medical volunteers driving around and offering services. There are multiple governmental and non-governmental agencies that have sought to engage in this work because of the understanding that unhoused people tend to have increased barriers to access traditional services.

The concept of street outreach to individuals that are experiencing homelessness is a classic example of a form of outreach. Outreach is often meant to fill in the gap in the services provided by mainstream (often governmental) services, and is often carried out by non-profit, nongovernmental organizations. It includes identification of under-served populations and service referral and the use of outreach tools like leaflets, newsletters, advertising stalls and displays, and dedicated events. In addition to delivering services, outreach has an educational role, raising the awareness of existing services. Compared with traditional service providers, outreach services are provided closer to where people may reside, efforts are very often voluntary, and have fewer, if any, enforceable obligations. A key component of outreach is that the group providing it is not stationary, but mobile in other words, it involves meeting someone in need of an outreach service at the location where they are.

Outreach is the activity of providing services to any population that might not otherwise have access to those services.
