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UPDATE (published March 5):
The U.S. General Services Administration announced yesterday an expansive list of federal properties the agency deemed “designated for disposal,” including a huge IRS building in Holtsville.
However, on Wednesday, the entire list was removed. In its place the link now indicates a list is “coming soon.”
“We are identifying buildings and facilities that are not core to government operations, or non-core properties, for disposal,” the GSA site now reads. “Selling ensures that taxpayer dollars are no longer spent on vacant or underutilized federal spaces. Disposing of these assets helps eliminate costly maintenance and allows us to reinvest in high-quality work environments that support agency missions.”
When asked why the list was taken down, Stephanie Joseph of GSA said in a statement to USA Today and other outlets that “since publishing the initial list on March 4, 2025, we have received an overwhelming amount of interest.”
“We anticipate the list will be republished in the near future after we evaluate this initial input and determine how we can make it easier for stakeholders to understand the nuances of the assets listed. As we stated in our press release, ‘GSA will continuously review and update the list of non-core assets,’” she said.
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ORIGINAL REPORT (published March 4):
Two federal buildings on Long Island have just landed on what the U.S. General Services Administration is calling a non-core property list.
That means the federal government is looking to unload them.
The first listed is a 7,810-square-foot childcare center at the Alfonse M. D’Amato U.S. Courthouse campus that’s reportedly been sitting empty in Central Islip.
But the real whopper is what comes second, the massive IRS service center in Holtsville.
The building is listed at 557,000 square feet in size.
“We are identifying buildings and facilities that are not core to government operations, or non-core properties for disposal,” reads a post published by the GSA that includes several properties in New York. “Selling ensures that taxpayer dollars are no longer spent on vacant or underutilized federal spaces. Disposing of these assets helps eliminate costly maintenance and allows us to reinvest in high-quality work environments that support agency missions.
“The list below includes properties designated for disposal. We will update it as assessments progress.”
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The IRS does not publicly disclose staffing levels at its offices, so it’s unclear how many jobs are at stake in Holtsville.
But according to News 12 Long Island, IRS employees in Holtsville said more than 100 were laid off last month.
The building that’s included in the GSA list published today should not be confused with another IRS building, a smaller one that was already sold in 2022 for $28.5 million, and where the IRS now rents space. In the map below, that’s the smaller building to the north, outlined in red. The building on the GSA list is much larger, and is located to the south, also outlined in red:

Earlier today, The Hill and other outlets reported that nearly 450 properties were listed by the GSA as non-core.
“Even GSA’s own headquarters is on the list, along with the building that houses the headquarters for the Office of Personnel Management and U.S. Housing and Urban Development,” The Hill is reporting.
Politico added in a separate report that the move is part of a broader effort by GSA’s Public Buildings Service to offload properties and leases the Trump administration has deemed no longer essential to government operations.
Click here for the full list, nationwide. This is a developing story. Check back with Greater Long Island for updates.
Related
Top: The sprawling IRS Service Center in Holtsville measures 557,000 square feet in size and its parking lots and grass buffers are built over 75 acres, according to tax records. (Credit: Michael White)