Baltimore City (FIPS 24510) is running the preemptive-zoning playbook in a major city — establishing “private detention center” as a prohibited use citywide before any specific facility is proposed, rather than reacting to a discovered project (as Howard County did in Elkridge). This is a deliberate, legislative version of the same defense, in Maryland’s largest jurisdiction.

The Fight

Council President Zeke Cohen introduced a bill on March 10, 2026 (formally reported by the Baltimore Sun March 9) to ban private detention centers within city limits by creating a new zoning category that makes them a prohibited land use. The bill:

• Bans private contractors from operating detention facilities anywhere in the city
• Does not reach federal buildings (e.g., the federally owned Fallon Building hold rooms) — it is a zoning/land-use instrument, so it binds private operators and city permitting, not federal property
• Is co-sponsored by 12 of the 15 councilmembers

It was referred to the Land Use & Transportation Committee (hearing April 16), which advanced it without opposition on April 30, 2026. The bill then moved to the full City Council, with full-council action scheduled for May 11, 2026 (per recovered commission/Legistar agenda data; final passage vote not yet confirmed in press coverage as of this research).

Why It Matters

Baltimore is the highest-heat Maryland county in the pipeline (heat score 94). This is the citywide preemptive-defense model applied in a major city, distinct from the reactive permit-revocation seen in Howard County (Elkridge) and the emergency county-zoning ban in neighboring Baltimore County. Where Elkridge was a stealth facility caught after the permit issued, Baltimore City is closing the zoning door before a private operator applies — the strongest form of the playbook because it removes the as-of-right pathway entirely.

It is also the third layer of an unusually complete municipal anti-ICE stack built in early 2026, mirroring at the city level what Maryland built at the state level (287(g) ban → Dignity Not Detention → Community Trust Act).

Key Details

The Three-Layer Baltimore City Stack (2026)

1. Safe Spaces and Communities Act — passed 14-0 on March 23, 2026. Bars ICE from city buildings, restricts Baltimore Police cooperation with federal immigration enforcement (except executing criminal warrants), prohibits the city or city-affiliated organizations from contracting with any government or private entity that houses detained immigrants, and bars the city from collecting/sharing immigration-status data.
2. Private detention center zoning ban (this entry) — Cohen bill, advanced from committee April 30, full council May 11.
3. Pension divestment — a parallel proposal (associated with Councilman Mark Conway in March 2026 reporting) to require the city’s retirement systems to divest from private prison and detention companies; not yet voted as of this research.

The Federal Pressure Point: Fallon Building Hold Rooms

The legislative push is driven in part by conditions at the George H. Fallon Federal Building ICE hold rooms in downtown Baltimore — which the city zoning ban cannot reach (federal property). Maryland AG Anthony Brown sued ICE/DHS (March 2026) to force production of records for a civil-rights investigation into “dangerous, inhumane, and unlawful conditions.” A related class action before U.S. District Judge Julie Rubin alleged the facility, designed for ~56 people, held 120+ — with declarations describing 40-50 people in a 15x15 room, no bedding, extreme cold, and a detainee with a brain tumor untreated for 10+ days. Rubin certified the class and ordered ICE to cap the facility at 56 detainees, conduct medical screenings within 12 hours of arrival, and clean rooms daily. The zoning ban is the city’s lever on future private detention; the Fallon litigation is the lever on the existing federal facility.

Cross-References

• Baltimore County emergency zoning ban: neighboring Baltimore County (FIPS 24005) passed an emergency bill 6-0 on Feb 17, 2026 (introduced by Councilman Julian Jones, requested by County Executive Kathy Klausmeier) amending zoning to bar permits for “detention centers, jails, or other facilities used for involuntary confinement,” with retroactive revocation authority for permits issued since Jan 1, 2026. County/state-run facilities exempt. Trigger: ICE leasing 16,365 sq ft at 201 International Circle, Hunt Valley, for the Office of the Principal Legal Advisor (~34 staff).
• Howard County / Elkridge (howard-county-md-elkridge-blocked): reactive permit revocation + emergency ban after stealth facility discovered — the model Baltimore City is making preemptive.
• Washington County / Williamsport (washington-county-md-warehouse-fight): the live warehouse-conversion fight (NEPA injunction, Judge Hurson) that catalyzed statewide alarm.
• Maryland statewide stack (maryland-287g-ban-and-sheriff-defiance): Dignity Not Detention Act already bars local facilitation of private detention statewide; the Baltimore City zoning ban hard-codes that into city land use.

Sources

• Baltimore Council targets private immigration detention centers with new legislation — Baltimore Sun (Mar 9, 2026)
• Baltimore moves to ban private detention facilities in the city — WYPR (Mar 10, 2026)
• Bill to ban private detention centers introduced in Baltimore City Council — CBS Baltimore
• Baltimore City Council introduce bill banning private detention centers — WMAR
• Baltimore committee advances proposed detention center ban to full council — Baltimore Sun (Apr 30, 2026)
• Baltimore City Council passes bill limiting ICE cooperation — WYPR (Mar 23, 2026)
• City Council passes bill barring Baltimore from ICE cooperation — Baltimore Sun (Mar 23, 2026)
• Baltimore’s council bans ICE from city buildings, restricts police cooperation — CBS Baltimore
• Baltimore City Council takes on private prisons, gun safety and grocery beer sales — Baltimore Sun (Mar 24, 2026) (pension divestment proposal)
• Attorney General Brown Files Lawsuit to Force ICE to Turn Over Records — MD Office of the Attorney General
• Maryland sues ICE, DHS amid AG investigation into conditions at Baltimore facility — CBS Baltimore