Homelessness is a pressing issue in many communities and a persistent challenge to governments and nonprofit organizations across the U.S. In 2023, more than 653,000 people experienced homelessness during a one-night tally, according to the U.S. Department of Housing and Urban Development. That figure was the highest since HUD started reporting the issue to Congress in 2007. With a problem of this magnitude, we need a full spectrum of housing solutions since each has its own benefits and tradeoffs. In these pages, we address one approach: interim supportive housing. We believe it is a powerful tool with the potential to house more people quickly, affordably, and in a dignified way. Through our research, we have played a key role in developing a series of small communities of prefabricated or modular tiny homes, typically built on empty parcels or existing parking lots that are slated for redevelopment in two to five years. While proven in a growing number of communities, interim supportive housing for people experiencing homelessness is a relatively new concept, with many developers at the start of the learning curve. Our goal is to share our learnings for the benefit of others looking to apply this typology to help address homelessness in their communities.