521 Henry Street, Brooklyn, NY 11231

The three-unit, three-story building at 521 Henry Street in Carroll Gardens, owned by Gregory O'Connell, has experienced several significant maintenance issues, particularly during a concentrated period in late 2021. Between October and December 2021, there were multiple emergency complaints regarding heat and hot water issues affecting the entire building, with ten separate incidents reported between October 28 and November 18, 2021. These complaints were generally resolved, though some required follow-up inspections and were marked as duplicates of other tenant reports.

Additionally, there were two emergency complaints about cooking gas issues during this period. Violations were subsequently issued in October 2021 for inadequate hot water and gas supply to the kitchen fixtures in Apartment 1. The building's infrastructure problems extended beyond 2021, with an open violation from October 2019 regarding inadequate exterior lighting at the front entrance.

On a positive note, the building has demonstrated good pest management practices, with the most recent bedbug report filed in June 2025 showing no infestations or related cases through the past five years of reporting (2019-2024). Rodent inspections in early 2019 indicated rat activity, suggesting a past pest control challenge, but there have been no recent complaints or violations related to this issue. The heat and hot water problems of late 2021 appear to have been resolved, as there have been no similar complaints recorded in the past two years, and the building has maintained a consistent record of zero bedbug infestations since 2021. The building's age (constructed in 1900) and classification as an Old Law Tenement are consistent with its historical status within New York City housing stock.