Mark Hallum
- Indexed articles, last 90 days
- 100
- Latest publication
- Sep 30, 2026
- Outlet visibility, for Commercial Observer
- Top 500K sites
- Earliest in this view
- Jul 6, 2026
Latest articles
C&W Tapped to Market Properties Once Slated for Detention Centers (opens the original)
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The Trump administration is working with Cushman & Wakefield to offload seven industrial sites it had planned to convert to immigrant detention centers. Along with the U.S. General Services Administration, the administration will be working with C&W to find buyers for the vacant warehouses to claw back some of the $706.8 million it paid for the seven properties earlier this year, Green Street News reported late Tuesday. The federal government originally paid an average of $134 per square foot fo
Mamdani Secures Stay in Court Order Against Pied-à-Terre Tax Rollout (opens the original)
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It may be back to the drawing board for Mayor Zohran Mamdani in the rollout of his pied-à-terre tax after a Staten Island judge ruled Tuesday the tax’s debut was mishandled and that the mayor must start over. But, for the time being, the city will continue in its current trajectory after filing an appeal late Tuesday and invoking an automatic stay in the process, according to city officials. Unless the Mamdani administration can find a more permanent solution to the court ruling, though, it will
Nonprofit to Build School Campus on Brooklyn’s Floyd Bennett Field (opens the original)
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The National Park Service has leased a 7-acre space in Brooklyn’s Marine Park neighborhood to a workforce development nonprofit. Runway Green signed a 60-year agreement with the federal government to build a $60 million agricultural and environmental education facility at Floyd Bennett Field, according to the organization. The former airfield near Jamaica Bay is within Gateway National Recreation Area, which the Park Service oversees. The first phase of the project will break ground next year wh
Arrow Linen Supply Sells Stalled Park Slope Development Site for $55M (opens the original)
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Arrow Linen Supply Company, a family-owned laundry rental business, has sold its recently rezoned property in Park Slope, Brooklyn, to a developer. The former industrial site at 441–467 Prospect Avenue sold Monday to Yitzchok Katz’s Goose Property Management for $55 million, according to broker JLL. The deal comes after the New York City Council in February 2025 greenlighted a rezoning that would allow two housing structures with 250 units at the assemblage. The project, however, became stalled
Solidcore Signs Lease for Fitness Studio at 1695 Second Avenue (opens the original)
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A strength training brand has signed a retail lease on Manhattan’s Upper East Side. Solidcore, a national fitness chain that offers high-intensity workouts, took the entire retail component of Alchemy-ABR Investment Partners’ 1695 Second Avenue, a new 23-story, 51-unit residential building on East 88th Street, according to landlord broker JLL. JLL did not disclose the square footage of the lease, but plans for the building — dubbed the Langdon — laid out 2,507 square feet for the retail space, Y
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For Commercial Observer, the outlet · Measured Aug 1, 2026
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