667 Knickerbocker Avenue, Brooklyn, NY 11221

The three-story, six-unit building at 667 Knickerbocker Avenue in Bushwick, owned by Yoel Shafer, has experienced several significant maintenance issues over recent years, most notably a documented mold problem in apartment 2B that emerged in May 2023 and required inspection and violation issuance by the Department of Housing Preservation and Development (HPD). This building, constructed in 1910, has a history of various maintenance challenges, with multiple complaints filed in March 2019 regarding water leaks (damp spots), wall and ceiling paint/plaster issues, and electrical problems, though HPD was unable to gain access for inspection at that time.

More recently, in early 2025, the building passed rodent inspections, though there was an initial report of rat activity in March 2024, and it has maintained a clean bedbug record with no reported infestations in its most recent filings from 2022 through 2025. The property has also faced several regulatory requirements and inspections over the years, including a bedbug reporting requirement in 2021 (which was marked as an A class violation requiring compliance), and a lighting maintenance violation from 2015 regarding inadequate front entrance lighting (a B class violation) that was certified as corrected in February 2023.

A 2022 Department of Buildings complaint regarding an alleged illegal conversion could not be investigated due to access issues. While the building's recent rodent inspection results have been generally favorable, with passed inspections in 2024 and 2025, the recurring nature of moisture-related issues, as evidenced by the 2023 mold violation and the 2019 complaints, suggests ongoing challenges with building maintenance and moisture control.