4204 Avenue J, Brooklyn, NY 11210

The two-family residence at 4204 Avenue J in Flatlands, Brooklyn, has experienced a series of notable incidents over the past three years, with the most recent activity centered around significant enforcement actions in 2025. This year, the building has faced multiple complaints and inspections, including allegations of illegal hotel rooms, unauthorized construction work, and work conducted contrary to a Stop Work Order, though most of these inspections resulted in either unsubstantiated claims or access issues for inspectors.

A concerning pattern emerged in February 2025 when four separate complaints regarding various building violations, including illegal construction, permit issues, and after-hours work, were filed, though two of these inspections resulted in failed attempts to gain access. A Stop Work Order related to permit violations was ultimately fully rescinded in May 2025.

Prior to these incidents, in late 2022, the building was cited for having an illegal advertising sign, which resulted in an Environmental Control Board violation against Zander Realty LLC for an unauthorized 5' x 6' metal-framed sign installed on the building's wall, carrying a $250 penalty. Additionally, a violation was issued in April 2023 for failure to file the 2022 external low pressure inspection, though this particular violation was dismissed in March 2025. The building, owned by Renald Leconte and constructed in 1931, has maintained its original two-story structure designation throughout these events.