Accessing Shelter and Housing at COTS

Are you homeless or worried about becoming homeless?

COTS Emergency Shelter and Permanent Supportive Housing programs are accessed through Sonoma County Coordinated Entry System. Please call 866.542.5480 to enroll with Coordinated Entry.

For more information about Coordinated Entry, click here. For additional homeless resources, go to or call 211.

COTS’ Shelter and Housing Programs

Housing Solutions for a Range of Needs

COTS meets our clients where they’re at – and while one client might need help with moving expenses, another might need long-term supportive services. To meet a wide range of needs, COTS matches our clients with a wide range of services.

Mary Isaak Center Shelter

The Mary Isaak Center Emergency Shelter is an 80-bed dorm-style shelter for individuals aged 18 and over. Dorm is sectioned by gender, with a special section dedicated to those who are maintaining sobriety. Case management, Client Enrichment, and Social Supports services are available onsite, as well as access to the Petaluma Health Center annex. The Emergency Shelter is run using a Harm Reduction model; substance use is tolerated but is not allowed on campus.

Recuperative Care

COTS six-bed Recuperative Care program offers a healing environment to hospital patients who are ready to exit from the hospital but who do not have a home in which to heal.

Kids First Family Shelter (KFFS)

Our Kids First Family Shelter offers shelter to families with minors. Case management and other supportive services are offered onsite.

Permanent Supportive Housing (PSH)

COTS runs two Permanent Supportive Housing programs, one for chronically homeless individuals and the other for individuals who are super-utilizers of the emergency care system. Clients work with case managers on maintaining housing, increasing self-sufficiency and well-being, and obtaining necessary referrals to healthcare providers. COTS provides access to a licensed Marriage and Family Therapist to serve this vulnerable population. We have multiple locations for these programs, including 11 units at the Mary Isaak Center. COTS’ Property Manager conducts quarterly housing inspections to ensure safe and healthy living environments for our clients.

Integrity Housing

COTS’ Integrity Housing program master leases (or owns) multibedroom units throughout Sonoma County and subleases individual rooms to adults and families experiencing homelessness. The cost of renting a room in Integrity Housing is significantly lower than renting a market-rate unit, thus making housing more affordable to our clients. Case management, Social Supports, and other supportive services are offered to all clients. Some of our Integrity Housing units are specifically offered to those who are dedicated to maintaining sobriety. COTS’ Property Manager conducts quarterly housing inspections to ensure safe and healthy living environments for our clients.

Rapid Rehousing (RRH)

Rapid Rehousing assists individuals and families who are experiencing homelessness in obtaining and maintaining permanent housing by providing short-to-medium term financial assistance, case management, and other supportive services. Financial assistance is determined on a case-by-case basis dependent on client need. COTS does not own or manage the units that are rented by Rapid Rehousing clients, but we do enter into a financial agreement with property owners to pay security deposit and graduated rental assistance. We can also support clients with moving costs and utility assistance.

If you are homeless and seeking this type of assistance, please contact:

Rapid Rehousing Case Manager, Carmen Razo-Clark at 707.765.6530 x205 or or Rental Assistance Support Specialist, Kristen Holmes at 707.765.6530 x101 or

If you are a property owner or manager and would like more information about partnering with COTS to offer housing to our clients, please contact Kristen Homes at 707.765.6530 x 101 or

COVID Rental Relief – City of Petaluma Residents Only

If you live within Petaluma city limits and have been financially impacted by COVID-19, our Rental Assistance program may be able to help you catch up on rent.

Kristen Holmes, 707.765.6530 x101 or

Click here to find out moreHaga clic aquí para ver en español.