Proposed Horizon Treatment Services facility on Mahler Road
Summary
San Mateo County is buying the former sobering station site on Mahler Road and leasing it to Horizon Treatment Services for a 69-bed sobering, detox, and residential treatment facility. Burlingame can't block it — counties are immune from local zoning — and the council heard hotel managers worried about safety and economics, plus supporters who say the county desperately needs the treatment capacity. The Board of Supervisors acted the next morning.
At a glance
- Total mentions
- 2
- Last 30 days
- 0
Last discussed Jul 6, 2026.
Impact analysis
No direct city cost, but hotels worry a single safety incident could threaten a revenue stream worth nearly a third of city funds.
People across San Mateo County struggling with substance use, plus hospitals, police, and jails that currently absorb those crises.
Nearby hoteliers and businesses who say they learned of the deal late and fear loitering and reputational risk; critics also cite sea level rise exposure at the site.
Mentions & discussions (2)
City Council — July 6, 2026
San Mateo County is buying the former sobering station site on Mahler Road and leasing it to Horizon Treatment Services for a 69-bed sobering, detox, and residential treatment facility. Burlingame can't block it — counties are immune from local zoning — and the council heard hotel managers worried about safety and economics, plus supporters who say the county desperately needs the treatment capacity. The Board of Supervisors acted the next morning.
City Council — April 20, 2026
A $25 million state grant could move a 69-bed detox, sobering, and residential treatment center from San Mateo to Burlingame's Bayfront. Hotels and life science companies worry about safety and economic impacts, while the city says it lacks control over the final decision. The Board of Supervisors may authorize the Mahler Road purchase on May 5.
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