5806 21st Avenue, Brooklyn, NY 11204

The two-story, four-unit residential building at 5806 21st Avenue in Borough Park, owned by David Landau, has experienced several significant events in recent years that warrant attention. Most notably, between April and June 2025, the property underwent what appears to be unauthorized renovation work, leading to multiple Department of Buildings (DOB) complaints and violations related to construction safety compliance and work without proper permits.

This period saw the issuance of building violations for failure to obey stop work orders, with one particular ECB violation dated April 3, 2024, resulting in a $3,125 penalty for unauthorized full gut renovation work. While some of these construction-related issues were eventually resolved, including the rescinding of stop work orders, the sequence of events suggests a pattern of non-compliance with proper construction protocols.

In terms of pest control and maintenance, the building has demonstrated compliance with bedbug reporting requirements, successfully reporting no infestations or required eradications in its annual filings from 2019 through 2022. The most recent open Housing Maintenance Code violation from April 2024 pertains to the failure to file an annual bedbug report, though this appears to be an administrative issue rather than a health concern, given the building's previous clean record. Historically, the property has maintained a century-old structure built in 1931 without any major structural incidents or emergency violations on record, indicating relative stability in building condition over time.