21 East 66th Street, Manhattan, NY 10065

21 East 66th Street is a 12-story, 19-unit residential building constructed in 1921, currently owned by Christopher Hartmann. The building has active violations related to safety and maintenance requirements, including an "Unsafe Report" filed in February 2025, failure to file the FISP Cycle 9C Technical Report by February 2024, and failure to display the energy efficiency score and grade as required by the NYC Administrative Code in December 2022.

The property has maintained compliance with bedbug reporting requirements in recent years, with the most recent filings (2023-2024) showing zero infested units, though there were two incidents noted in 2018-2019 where a single unit required eradication. The building's maintenance record shows consistent attention to rodent control, passing inspections from 2010 through 2019. The Department of Buildings has recorded several complaints between 2020-2021 related to construction activity, sidewalk safety, and compliance inspections, though all were closed with no violations warranted at the time of inspection.

Multiple permits have been issued for the building over the past several years, including several for emergency work and plumbing repairs between 2018-2022, though these permits are now closed. While the building has had some compliance issues requiring attention, particularly regarding its most recent safety reporting requirements, it has maintained a relatively stable occupancy history with active management of pest control and building maintenance requirements. The most significant recent issues appear to be primarily administrative in nature rather than directly affecting resident safety or comfort.