429 3rd Street, Brooklyn, NY 11215
The four-story, eight-unit residential building at 429 3rd Street in Park Slope, owned by John Avanzino, has been part of the neighborhood since 1920 and falls under the OLD LAW TENEMENT classification.
The property's recent history shows some concerning developments, most notably a rat sighting reported and confirmed by the Department of Health and Mental Hygiene in June 2025, which resulted in violations requiring follow-up inspections.
This marks the first documented pest control issue for this building in recent years. Prior to this, in March 2019, there was an incident involving an illegally installed advertising sign or poster, which resulted in an Oath Violation being served following an inspection on March 21, 2019, though this issue was resolved by January 2020.
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Building Characteristics
Total units | 8 |
---|---|
Year built | 1920 |
Total area | 7112 sq ft |
Floors | 4 |
Tax Abatements | None |
Building Class | OLD LAW TENEMENT |

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Key Building Statistics
Included Addresses
- 429 3rd St, New York, NY 11215
- 308 6th Ave, New York, NY 11215
- 310 6th Ave, New York, NY 11215
- 312 6th Ave, New York, NY 11215
- 314 6th Ave, New York, NY 11215
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