City inspectors were last at this 4-unit mixed-use building on May 7, 2026, and the resulting violation remains open.
503 Onderdonk Avenue is a 4-unit building in Queens, New York City (BBL 4034050011). This building is associated with 503 Onderdonk Ave HDFC. Brix tracks 8 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1930, this mixed-use building sits in Queens and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.
Conditions cited on open violations at this address:
Brix score: 43/100. View the Building Report on Brix.
See every NYC building owned by 503 Onderdonk Ave HDFC on the landlord portfolio page.
Part of Ridgewood — see violations, complaints, and landlord activity across the whole neighborhood.
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Unit 2R at 503 Onderdonk Avenue has no open violations (4 past violations).
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