A 3-unit walk-up cooperative owned in perpetuity by its shareholders — no single landlord to change hands.
421 4th Street is a 3-unit building in Brooklyn, New York City (BBL 3009830059). This building is associated with 421 4th St Housing Corp. Brix does not yet have a current violation read for this property (not enough recent data), along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1899, this walk-up apartment building sits in Brooklyn and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.
The building last changed hands on March 24, 2026, according to recorded deeds.
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See every NYC building owned by 421 4th St Housing Corp on the landlord portfolio page.
Part of Park Slope — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit 3 at 421 4th Street has no violations. Owner on the latest deed: William Arthur Tanzer & William Arthur Tanzer Living Trust Dated 2/18/2026.
Unit 1 at 421 4th Street has no violations, last sold in 2025 for $2.1M. Owner on the latest deed: Tomes, Margaret & Tomes, Dustin.
Unit 2 at 421 4th Street has no violations. Owner on the latest deed: O'Rourke, Sheila.
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