Investigators probe West Side vacant-home fire amid reports homeless squatters may have sparked the blaze

Fire at an abandoned structure raises recurring questions about vacant properties and public safety

San Antonio fire investigators are examining a West Side blaze that damaged an abandoned home after first responders found indications the fire may have started inside the structure, a scenario frequently associated with unauthorized entry into vacant buildings during cold-weather periods.

In recent West Side incidents involving vacant or abandoned homes, firefighters have repeatedly encountered signs that people had been sheltering inside—often in structures with boarded entrances and limited safe access for crews. In several cases, investigators reported that the origin appeared “human-caused” or remained under review while arson investigators worked to determine whether the fire resulted from an intentional act or an accidental attempt to generate heat.

Pattern of fires in vacant homes: what officials have documented

West Side fires involving vacant properties have produced a consistent set of operational challenges for first responders: blocked entry points, unstable interiors, and uncertainty about whether anyone is inside. In a December 2024 fire at a vacant home in the 600 block of Comal Street, a man was detained after neighbors reported seeing someone leave as the fire broke out; investigators sought to determine whether he had been seeking shelter and whether an indoor fire spread out of control.

In October 2025, firefighters recovered a man’s body from an abandoned home in the 500 block of North Colorado Street after extinguishing heavy flames. The structure was deemed a total loss and considered dangerous, with demolition discussed. The cause of that fire remained under investigation, and officials noted the property was reportedly known to have squatters.

Earlier cases also illustrate how quickly a fire originating in a “vacant” structure can threaten occupied homes. A February 2022 West Side fire that began in a house believed to be vacant spread to a neighboring home and displaced residents. Investigators examined whether the fire could have been started deliberately or accidentally while someone attempted to keep warm indoors.

Why investigations can take time

Determining the origin and cause of a fire in an abandoned structure can be complicated by structural collapse, fire damage that destroys ignition evidence, and limited baseline information about the property’s condition and access points. When a building has been repeatedly entered or altered, investigators must sort out what is relevant to the fire’s start versus unrelated damage.

What residents should know

• Vacant structures can present life-safety risks to firefighters and neighbors, particularly when entryways are blocked or interiors are unstable.
• When a structure is suspected of being used for shelter, investigators typically examine potential ignition sources associated with indoor heat or light.
• Even when early indications point to human involvement, officials generally wait for a formal cause-and-origin determination before reaching conclusions.

Fire investigators typically distinguish between an accidental ignition linked to sheltering activity and an intentional act, based on burn patterns, points of origin, and physical evidence recovered on scene.

The investigation into the West Side abandoned-home fire remains focused on confirming how the blaze began, whether anyone was inside, and whether enforcement or property remediation steps are warranted once the site is stabilized.