335 Warren Street, Brooklyn, NY 11201

335 Warren Street in Boerum Hill is a 4-story, 8-unit residential building constructed in 2007, currently owned by Javier Kohen. The building has undergone regular bedbug reporting compliance since 2019, with six consecutive annual reports showing no instances of infestation, eradication, or re-infestation, most recently filed in December 2024 for the period ending October 2025.

The property has experienced two notable compliance issues regarding bedbug reporting: in April 2023 and April 2024, violations were issued for failing to file the annual bedbug report as required by HPD rules, though these were subsequently closed. In 2018, significant regulatory enforcement action occurred when illegal hotel room usage was reported, leading to multiple Environmental Control Board (ECB) violations concerning safety codes and unauthorized transient use of the building.

These included violations for improper egress lock installation, lack of fire alarm system for transient use at apartment #401 (fourth floor), and conversion of a permanent residence for non-permanent residential purposes, particularly affecting the fourth-floor unit. These violations carried fines totaling $3,750, though records indicate they were resolved. The building has maintained compliance with rodent inspections, passing in January 2021 following an initial rat activity finding in December 2020, suggesting improved pest management protocols have been instituted.