2101 East 21st Street, Brooklyn, NY 11226
2101 East 21st Street is a 20-unit, four-story New Law tenement building located in Flatbush, built in 1918 and currently owned by Sallie Colagi. The building has experienced recurring issues with heating and hot water systems, particularly during early 2025 when multiple complaints were filed between January 24-27, affecting both individual apartments and the entire building.
These complaints, categorized as emergencies, were ultimately closed between January and April 2025. There are also ongoing concerns regarding cooking gas systems, with multiple complaints filed between January and February 2025, some of which were identified as building-wide issues requiring confirmation through apartment inspections. Two significant violations remain open from 2023-2024, including a Class C violation for an illegal electromagnetic locking device at the building entrance and another Class C violation regarding inadequate heat supply in apartment 4D.
Recent building maintenance history indicates several infrastructure and safety concerns, including an open violation from November 2023 regarding blocked access to the heating system in the boiler room, and another open violation from November 2023 concerning bicycles blocking the first-floor public hall. Past violations, though closed, included heat and hot water issues in apartment C6 (2023) and various maintenance concerns in apartment C4 (2022) including problematic windows and bathroom tiles. The building reported no bedbug infestations in the last two annual reporting periods (2022-2024 and 2023-2025), with zero infested, eradicated, or re-infested units recorded in the most recent filing dated May 7, 2025, suggesting effective pest management protocols are currently in place.
2101 East 21st Street Report Contents
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Building Characteristics
Total units | 20 |
---|---|
Year built | 1918 |
Total area | 21400 sq ft |
Floors | 4 |
Tax Abatements | None |
Building Class | NEW LAW TENEMENT |

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Key Building Statistics
Included Addresses
- 2101 Cortelyou Rd, New York, NY 11226
- 2103 Cortelyou Rd, New York, NY 11226
- 2105 Cortelyou Rd, New York, NY 11226
- 2107 Cortelyou Rd, New York, NY 11226
- 421 East 21st St, New York, NY 11226
- 423 East 21st St, New York, NY 11226
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