San Antonio Sues to Stop a 1,500-Bed ICE Warehouse, Testing the Environmental Law That Has Slowed Detention Expansion Elsewhere

The City of San Antonio sued the Department of Homeland Security and ICE on Oct. 13, arguing that the agencies broke federal environmental law by moving to turn a 640,000-square-foot East Side warehouse into a detention and processing center for up to 1,500 people without studying its effects. The suit puts the National Environmental Policy Act, the law that has already slowed ICE’s warehouse plans in New Jersey, before a federal judge just as the agency is hunting for beds and the Supreme Court has told lower courts to give agencies wide latitude on this kind of review.

The timeline explains the urgency. ICE bought the warehouse for $66.1 million earlier this year, according to KSAT and The Texas Tribune, awarded GardaWorld Federal Services a $17.3 million conversion contract in August, and has said the site could open early next year. KSAT alone reported, citing federal contract records, that the contract has grown to $61.8 million. ICE held 65,765 people in detention as of July 11, 2026, 70.6 percent of them with no criminal conviction, and Texas held more ICE detainees than any other state in fiscal 2026, according to data compiled by TRAC at Syracuse University.

What the city is asking a judge to do

The petition claims DHS violated NEPA and the Administrative Procedure Act by failing to weigh the conversion’s environmental consequences and reasonable alternatives, The Texas Tribune reported. It says the building’s sewer and water systems have not been upgraded to prevent discharges into surface waters and cites disease outbreaks at Texas detention centers this year as a public health burden. The city wants development halted until a proper review is done, Texas Public Radio reported, after five city letters since February drew one federal reply and, the city says, none of the engineering and design reports that reply promised.

NEPA is procedural. It requires a federal agency to study a major project before committing to it, through an environmental assessment and, if effects look significant, a fuller impact statement. It does not let a court veto the project. A win would most likely mean delay, and City Attorney Andy Segovia acknowledged as much, saying the goal is enough obstacles that federal officials reconsider. He expects an assessment to show significant impacts, triggering an impact statement that could take months, Texas Public Radio reported.

A stronger federal hook than Alligator Alcatraz, and a tougher standard of review

The closest precedent helps the city on one point. In 2025 a federal judge in Miami ordered Florida’s Everglades site, known as Alligator Alcatraz, to wind down on NEPA grounds, but the 11th Circuit stayed that order 2-1 on Sept. 4, 2025, reasoning that a facility built, run and paid for by the state was not yet a “major federal action,” CNN reported. San Antonio’s warehouse is federally owned and federally contracted, so that threshold defense is largely unavailable. In New Jersey, a NEPA suit by the state and Roxbury Township produced a May 2026 agreement barring DHS from converting its warehouse there until it finishes an environmental assessment, as Immigration Analytics reported Oct. 10.

The harder obstacle is the Supreme Court. In Seven County Infrastructure Coalition v. Eagle County, decided May 29, 2025, the Court held that “the central principle of judicial review in NEPA cases is deference” and told judges to give agencies substantial room on how deep their reviews go. That ruling makes it difficult to win by arguing that a federal study was too thin. It does much less to protect an agency that did no study at all. The practical effect is that the San Antonio case is likely to turn on what DHS actually prepared for this site, a record the city says it has not been shown.

DHS dismissed the suit. A spokesperson told The Texas Tribune the department is “singularly focused on removing the worst of the worst criminal illegal aliens,” said the city cared more about opposing the president’s immigration policy than about the environment, and said DHS is working with state and county partners to use existing detention space. That last point may matter in court. NEPA requires an agency to consider reasonable alternatives, and the department’s own statement describes one.

City Hall is split. Mayor Gina Ortiz Jones said San Antonio is “done waiting,” while Councilmember Marc Whyte called the suit “political theater” that could cost $500,000 or more and Councilmember Misty Spears said the city raised no such concerns about its own former Migrant Resource Center, Texas Public Radio reported.

The warehouse program has already been scaled back. DHS bought 11 warehouses this year for about $1 billion and is selling several, NPR reported, and Rep. Veronica Escobar told the Tribune in August that the department plans to sell three in El Paso County. If San Antonio wins even a temporary order before ICE’s target opening, the site would join the conversions held up by environmental review rather than by any ruling on immigration policy.

This article is for general information and is not legal advice.

Sources

Vasanth Vaidyanathan, Esq.

Administrator

Vasanth Vaidyanathan is an immigration attorney with over 20 years of experience focused exclusively on U.S. immigration and nationality law. He holds a LL.M. from California Western School of Law, San Deigo and advises individuals and businesses on employment and family-based immigration matters, including H-1B, PERM, EB categories, and adjustment of status. He has also been a featured speaker at immigration seminars across the U.S. To reach Vasanth visit: https://www.vnathan.com/

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