664 6th Avenue, Brooklyn, NY 11215

The four-story, eight-unit tenement building at 664 6th Avenue in Sunset Park, owned by Nicholas Kotsonis and constructed in 1931, has experienced several notable events in recent years. Most significantly, the building has maintained a consistent record of compliance with bedbug reporting requirements since 2021, with no reported infestations or eradications in any unit over the past five reporting periods through June 2025.

While the property had three consecutive bedbug report violation notices between 2021 and 2023, these appeared to be administrative in nature as no actual infestations were present. The building's maintenance history shows a violation issued in June 2023 related to failure to file the 2018 external low-pressure inspection, though this violation was subsequently dismissed by August 2023.

A construction enforcement complaint filed in April 2019 was investigated and found to have no warranted violations at the time of inspection. Between 2018 and 2023, multiple permits were issued for various work types under job number 340636734, including plumbing and exterior work, suggesting some level of maintenance or improvement work was undertaken during this period. Throughout this timeline, the property has maintained regular bedbug reporting compliance with no actual infestations recorded, indicating responsible management of this aspect of building maintenance despite the initial violation notices.