580 East 21st Street, Brooklyn, NY 11226
The six-story, 64-unit building at 580 East 21st Street in Flatbush, owned by David Blau and constructed in 1961, has experienced persistent maintenance issues, particularly with its elevator system and various apartment conditions. Most recently, in June 2024, multiple violations were documented including problems with window frames, radiators, electrical outlets, floors, walls, ceilings, and pest-related issues. In December 2024, significant violations were identified in apartment L1, including mold (with over 30 square feet affected), problems with windows, doors, cabinets, and various surface repairs.
The building has a documented history of elevator service issues, with complaints spanning from 2019 through 2025, showing ongoing problems with the single elevator service and related safety systems. Two notable elevator-related violations from 2022 remain on record, including a failure to provide Fireman Service Phase 1 and 2 and issues with the inoperative car phone and door gibs, though these were later marked as resolved. The property has undergone several inspections over the years, revealing inconsistent results with rodent inspections showing both passed and failed results between 2015 and 2023.
While the building has demonstrated compliance with bedbug reporting requirements from 2019 through 2024, with no reported infestations, the presence of recent mold and various maintenance violations suggests ongoing building maintenance challenges. The most recent activity includes multiple Housing Maintenance Code violations from December 2024 related to cabinetry, water leaks, windows, floors, and unsanitary conditions, though many earlier violations were marked as closed or resolved between late 2024 and early 2025. The building currently has active DOB violations from 2022 regarding an external low pressure inspection and swarm conditions that have not been fully resolved.
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Sign Up for Free580 East 21st Street Building Overview
Building Characteristics
Total units | 64 |
---|---|
Year built | 1961 |
Total area | 61500 sq ft |
Floors | 6 |
Tax Abatements | None |
Building Class | HEREAFTER ERECTED CLASS A |

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Key Building Statistics
Included Addresses
- 2015 Ditmas Ave, New York, NY 11226
- 2017 Ditmas Ave, New York, NY 11226
- 2019 Ditmas Ave, New York, NY 11226
- 2021 Ditmas Ave, New York, NY 11226
- 2023 Ditmas Ave, New York, NY 11226
- 2025 Ditmas Ave, New York, NY 11226
- 572 East 21st St, New York, NY 11226
- 574 East 21st St, New York, NY 11226
- 576 East 21st St, New York, NY 11226
- 578 East 21st St, New York, NY 11226
- 580 East 21st St, New York, NY 11226
- 582 East 21st St, New York, NY 11226
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