81 South 9th Street, Brooklyn, NY 11249
81 South 9th Street is a 3-story, 6-unit residential building constructed in 1992, currently owned by Isaac Breuer. The property has experienced recurring maintenance issues, with the most pressing concern being a series of mold-related complaints throughout 2025, including emergency responses in May and June 2025. The building has also faced intermittent heat and hot water system problems, with complaints documented in 2020, 2021, and 2024, though officials typically confirmed restoration of services during inspections.
In December 2024, a comprehensive inspection revealed multiple open violations regarding safety and informational postings in common areas, including requirements for smoke and carbon monoxide detector notifications, emergency procedures, and building registration information. These violations are classified as A and B, indicating varying levels of severity. The property's maintenance history shows some concerning patterns, particularly regarding building systems and sanitary conditions. Recent filings from 2021 to 2025 consistently show zero evidence of bedbug infestations, and while rodent issues were noted in 2021, the building passed subsequent inspections.
A set of emergency electrical complaints was recorded in June 2025. The Department of Buildings investigated a drainage complaint in 2024 but found no violations. The building's age (built in 1992) and location in Williamsburg align with broader neighborhood trends, though specific neighborhood characteristics are not documented in the building data. While some complaints have been resolved promptly, others suggest ongoing challenges with building systems and maintenance compliance, particularly regarding proper notifications and postings required by housing codes.
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Building Characteristics
| Total units | 6 |
|---|---|
| Year built | 1992 |
| Total area | 7260 sq ft |
| Floors | 3 |
| Tax Abatements | None |
| Building Class | HEREAFTER ERECTED CLASS A |

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Key Building Statistics
Included Addresses
- 81 South 9th St, New York, NY 11249
- 79 South 9th St, New York, NY 11249
- 81 South 9th St, New York, NY 11249
- 79 South 9th St, New York, NY 11249
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