340 21st Street, Brooklyn, NY 11215
The 4-story, 8-unit tenement building at 340 21st Street in Sunset Park, owned by Meir Kohn and built in 1931, has experienced several notable maintenance and compliance issues in recent years. Most concerning is the property's ongoing boiler maintenance compliance issues, with active violations for failure to file the 2018 external low-pressure inspection report (from June 2023) and the 2017 boiler inspection report (from November 2019).
Bedbug reporting appears to be in order, with the most recent filing in March 2025 showing no infested or re-infested units for the 2023-2024 period, though the building had multiple annual violation notices between 2021-2024 regarding the requirement to file annual bedbug reports. The building's maintenance history also includes various safety compliance issues, particularly in 2021, when violations were issued for failing to post proper notices regarding housing information guides and gas leak procedures. There have been pest-related complaints, including a 2021 HPD call about unsanitary conditions with pests that could not be inspected.
Additionally, rodent inspections in 2019 revealed rat activity, though an earlier inspection in July 2017 had passed. An attempted investigation in 2022 regarding illegal commercial use in a residential zone could not be completed as inspectors were denied access. Most recently, in May 2025, there was a boiler-related Oath violation served, indicating persistent issues with this critical building system.
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Building Characteristics
Total units | 8 |
---|---|
Year built | 1931 |
Total area | 5884 sq ft |
Floors | 4 |
Tax Abatements | None |
Building Class | NEW LAW TENEMENT |

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