439 16th Street, Brooklyn, NY 11215

439 16th Street in South Slope is a 4-story, 8-unit New Law Tenement building constructed in 1908, currently owned by 439 16th Street Investor, LLC. The building has experienced several concerning issues in recent years, most notably a series of rodent infestations, with multiple inspections showing "Rat Activity" between 2022 and 2025, and several bait applications in 2024.

There were significant incidents in 2023 involving fire damage affecting Apartments 3L and 4R, along with violations related to missing skylights and damaged plaster surfaces. The building has ongoing maintenance challenges, as evidenced by multiple Housing Maintenance Code complaints in 2025 regarding ceiling damage, appliance issues, and garbage storage, though some inspections found no violations. Earlier violations included problems with water leaks, mold, and various unsanitary conditions.

The property has a history of compliance issues, including a 2018 partial vacate order related to illegal occupancy and violations for failure to file boiler inspections, though these were ultimately dismissed. Recent bedbug reports have shown no infestations, and the building appears to have addressed some major issues, as evidenced by the "Closed" status for many violations, indicating that corrections were made. The building's management has undergone scrutiny for various code violations over the years, including inadequate fire safety measures and problems with utility supplies in Apartments 4L and 4R, though many historical violations have been resolved.