10 Hanover Square, Manhattan, NY 10005
10 Hanover Square is a 21-story, 493-unit residential building constructed in 1972, currently owned by Thomas Toomey. The property has experienced recurring maintenance challenges in recent years, including multiple heating and hot water outages (most recently reported in late 2024), ongoing elevator issues with multiple related complaints and violations (most recently in 2025), and a notable carbon monoxide detector emergency that remains open as of July 2025.
The building has also faced pest management challenges, evidenced by regular rodent inspections in 2025 showing rat activity and the application of bait, as well as several bedbug reports between 2019-2024, though recent filings from 2024-2025 indicate no current infestations. The building's history shows consistent issues requiring government intervention, including multiple Department of Health complaints regarding smoking in prohibited areas and food establishment concerns between 2024-2025.
There were significant fire safety-related violations identified in late 2022 concerning fire alarm systems and unauthorized use of a transient unit, along with several building code violations related to occupancy and maintenance requirements. The property has undergone various improvement works, with multiple permit issuances in 2018-2020, though concerns about building systems and safety compliance continue to be a recurring theme. The building's management has received multiple fines for various violations, including a $1,250 penalty in early 2024 regarding elevator maintenance issues, though many earlier violations from 2020-2021 were resolved or dismissed based on subsequent corrections.
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Building Characteristics
Total units | 493 |
---|---|
Year built | 1972 |
Total area | 487404 sq ft |
Floors | 21 |
Tax Abatements | None |
Building Class | HEREAFTER ERECTED CLASS A |

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Key Building Statistics
Included Addresses
- 4 Hanover Sq, New York, NY 10005
- 6 Hanover Sq, New York, NY 10005
- 8 Hanover Sq, New York, NY 10005
- 10 Hanover Sq, New York, NY 10005
- 110 Pearl St, New York, NY 10005
- 112 Pearl St, New York, NY 10005
- 114 Pearl St, New York, NY 10005
- 116 Pearl St, New York, NY 10005
- 118 Pearl St, New York, NY 10005
- 120 Pearl St, New York, NY 10005
- 122 Pearl St, New York, NY 10005
- 76 Water St, New York, NY 10005
- 78 Water St, New York, NY 10005
- 80 Water St, New York, NY 10005
- 82 Water St, New York, NY 10005
- 84 Water St, New York, NY 10005
- 86 Water St, New York, NY 10005
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