Research on sober living houses in California found that residents cut alcohol and drug use, arrests and psychiatric symptoms, and that most of those gains held at 18 months. Outcomes were best for people active in 12 Step groups with a sober social network. At Blackburn Recovery Services in Los Angeles, we build our homes around those same factors.
Last reviewed: October 2026.
Key facts from the research
- A study of sober living house residents in Northern California followed them for 18 months. Their alcohol and drug use, psychiatric symptoms, employment and arrests improved in the first 6 months, and those gains held at 12 and 18 months (Polcin, Korcha, Bond and Galloway, Journal of Substance Abuse Treatment, 2010).
- In that study, the substance use of a resident’s friends predicted nearly every outcome. More 12 Step involvement went with less drinking and drug use and fewer arrests.
- A later study found that residents of houses that belonged to a larger group of houses had higher odds of staying abstinent (Mericle, Mahoney, Korcha, Delucchi and Polcin, Journal of Substance Abuse Treatment, 2019).
- In a randomized trial of Oxford House, a self-run model of recovery housing, 31.3 percent of residents reported substance use at 24 months, compared with 64.8 percent of people in usual aftercare (Jason and colleagues, American Journal of Public Health, 2006).
Does sober living actually work?
For many people, yes. The best evidence says that living in a sober, supportive home after treatment is linked with less substance use and better day to day functioning, and that the benefits last well beyond the first few months.
The research also says something more useful than “it works.” It points to why it works. A sober house helps most when residents stay connected to recovery groups and when the people around them are sober too. The house is a setting. The community inside it does much of the work.
What did the California sober living studies find?
Douglas Polcin and colleagues at the Alcohol Research Group studied sober living houses in Northern California. They interviewed residents within a week of moving in and again at 6, 12 and 18 months. They measured alcohol and drug use, addiction severity, psychiatric symptoms, work and arrests.
Residents improved on these measures between move in and the 6 month interview. The important part is what came next. Those improvements were still there at 12 and 18 months. Sober living did not just hold people steady while they lived there. Gains carried forward.
Two things stood out as predictors:
- Friends matter. The more a resident’s social network used alcohol or drugs, the worse he tended to do on nearly every measure.
- 12 Step involvement matters. Residents who were more involved in 12 Step groups had lower alcohol and drug use and fewer arrests.
A 2019 follow-up analysis by Amy Mericle, Polcin and colleagues looked at the houses themselves. Residents of houses that were part of a larger group of houses had higher odds of total abstinence and drug abstinence. Residents of houses affiliated with a treatment program had higher odds of being employed.
What does research on other recovery housing show?
Oxford Houses are self-run homes with no staff, where residents govern the house together. Leonard Jason and colleagues at DePaul University ran a randomized trial with 150 people leaving treatment. Some were assigned to live in an Oxford House and others to usual aftercare. At 24 months, 31.3 percent of the Oxford House group reported substance use, compared with 64.8 percent of the usual care group. The Oxford House group also had better employment.
Oxford House is a different model from staffed sober living, so the numbers do not transfer directly. But the trial supports the same core idea: a sober place to live, shared with other people in recovery, helps people stay sober.
What predicts better outcomes in sober living?
Across the studies, a few factors keep coming up:
| Factor | What the research suggests |
|---|---|
| Sober social network | Friends who use alcohol or drugs predicted worse outcomes on nearly every measure in the California study. |
| 12 Step involvement | More involvement was linked to less substance use and fewer arrests. |
| Time | Gains made in the first 6 months held at 18 months, so the early months build a base for the rest. |
| Organization of the house | Houses that belonged to a larger group of houses had better abstinence outcomes. |
On time in general, the National Institute on Drug Abuse says in its Principles of Drug Addiction Treatment (2018) that most people need at least 3 months in treatment to significantly reduce or stop drug use, and that the best outcomes come with longer treatment. Sober living is not treatment, but it is often how people stay engaged with recovery after a program ends.
What does the research not show?
It is worth being honest about the limits.
- The California sober living studies followed residents over time without a comparison group. They show that people improved, but they cannot prove the house alone caused it.
- The randomized trial was of Oxford House, not of staffed sober living like ours.
- No study can tell you how one particular man will do. Motivation, health, family and timing all matter.
- Research describes sober living houses in general. It does not rate or rank individual homes.
How does the Blackburn model line up with the research?
We did not design our homes from a journal article. We designed them from years of watching what helps men stay sober. It is good to see that the research points to the same things.
- A sober network. Every home is men only and fully sober, so the people a resident sees every day are in recovery too.
- 12 Step involvement. Weekly 12 Step meetings and goal setting are part of every home.
- Accountability. Drug testing 3 times a week and daily alcohol testing keep the home sober for everyone.
- Staff and organization. Full-time staff run the homes, and each home is part of a larger group of Blackburn homes across the Westside.
- Connection to care. Weekly updates go to families, providers and treatment teams, with the resident’s permission. Blackburn Clinical Services, part of the same group, offers outpatient therapy and psychiatry.
- A next step. When a man is ready for more independence, our sober apartments in West Los Angeles keep weekly random testing in place.
Questions about sober living outcomes
How long should someone stay in sober living to benefit?
There is no single right number. The California study found that gains made in the first 6 months held through 18 months, and NIDA says at least 3 months of treatment is usually needed for real change. Our guide on how long to stay in sober living covers how to decide.
Is sober living better than going home after rehab?
For many people it is the safer choice, because home can mean old friends and old routines. The research shows that a resident’s social network strongly predicts how he does. A sober house puts a sober network around him while new habits form.
Does drug testing in sober living help?
The outcome studies did not test drug testing on its own. In practice, regular testing keeps the house sober for everyone, which protects the sober network that the research ties to better outcomes. Read more about random drug testing in sober living.
Who does sober living not work for?
Sober living is not a substitute for medical care. Someone who needs detox, close medical monitoring or a higher level of treatment should get that first. Sober living also works poorly for someone who does not want to stay sober, since the whole house depends on that shared commitment.
Are these results true for every sober living home?
No. Homes differ a great deal in staffing, testing and culture. Use the factors above to ask good questions when you compare homes.
Talk with us about sober living
If you are weighing sober living for yourself or a family member, call us. We will talk honestly about whether our homes fit. Sober living tours are in person or by video.
For the apartments, schedule an apartment tour.