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77 Riverdale Avenue is a walkup apartment building built in 1930 in Brooklyn with 4 residential units. It carries a Grade F health score, with 40 open Class C hazardous violations and a recurring pattern of habitability complaints (heat, electric, elevator, mold, lead, boiler, or unsanitary conditions) among the recorded concerns. Our analysis reviewed 446 records across 25 public data sources, benchmarked against similar small prewar residential buildings in NYC.
127 open violations are past the city's repair deadline. 40 hazardous (Class C) violations remain open in city records (11 opened in the last 2 years).
The grade measures tenant living conditions from public city records (violations, complaints, litigation). It is not a structural or construction-safety rating.
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This building and its nearest neighbors, colored by grade.
Construction and structural enforcement from city records. These are facts from DOB/ECB/FDNY filings — they are separate from the tenant-conditions grade above.
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Heat/Hot Water — Entire Building
Heat / Hot Water
Heat / Hot Water
Electric — Power Outage
Heating — Heat Related
Heating — Heat Related
Plumbing / Leak
Window
Paint / Plaster
Plumbing / Leak
Paint / Plaster
Plumbing / Leak
Paint / Plaster
Pests / Vermin
Property Records recorded
Property Records recorded
Property Records recorded
Property Records recorded
Mailbox
Electrical
This report is an informational tool based on publicly available government records and does not constitute a “consumer report” under the Fair Credit Reporting Act. Building grades are editorial opinions and should not be used as the sole basis for housing, lending, or employment decisions. Data sourced from HPD, DOB, DOF, ECB, FDNY, 311, and other NYC agencies. Report errors to data@openstoop.com. See our Terms and Privacy Policy.