633 10th Street, Brooklyn, NY 11215

The 6-unit, 3-story building at 633 10th Street in South Slope, constructed in 1894 and currently owned by Nicholas Kotsonis, has experienced several significant maintenance issues over recent years. Most notably, in March 2025, there were multiple urgent plumbing complaints regarding water supply issues, with at least one inspection attempt by the housing authority (HPD) being unsuccessful.

This followed a pattern of plumbing-related concerns, with the building receiving three Housing Maintenance Code violations in 2023-2024 related to improper bedbug reporting, though the building has consistently reported zero infested units since 2020. The building's maintenance history shows a concerning rat infestation problem in mid-2015, with multiple inspections and bait applications recorded between June and September 2015, indicating persistent rodent issues at that time.

More recently, in 2019, there was a stop-work order issued and subsequently rescinded regarding unauthorized construction work involving workers operating without approved plans on the second floor, though this was resolved with a penalty of $625. The property has maintained compliance with bedbug reporting requirements since 2021, consistently showing no new infestations or eradications in their annual filings. While some plumbing and maintenance issues have emerged in recent months, there is no current evidence of widespread infestation problems, and the building has resolved various historical violations, including the 2019 ECB violation related to construction work compliance.