Does 509 Hinsdale Street, Brooklyn have open violations?

Yes. 330 open violation records are held for 509 Hinsdale Street, Brooklyn as of September 13, 2026: 328 from HPD and 2 from OATH/ECB. 137 are HPD Class C violations, the class the city reserves for conditions it treats as immediately hazardous. The oldest record still open here was filed on September 21, 2023, 35 months before this reading.

Is the record at 509 Hinsdale Street, Brooklyn getting better or worse?

The record is filling faster than it is clearing. 17 newly opened against 0 certified in 180 days. That window ends September 13, 2026. The comparison is certifications filed against new Class C violations opened, and it describes what the record did, not what anyone intends.

How current is this record, and where does it come from?

The records for 509 Hinsdale Street, Brooklyn were read from the city on September 13, 2026. They come from HPD housing maintenance violations and OATH/ECB hearing results, both published by New York City, read whole for the period covered rather than sampled. The city's record changes daily: a violation certified after September 13, 2026 can still appear here as open, which is why the city's own page for this building is linked above.

509 Hinsdale Street, Brooklyn

BBL 3-03835-0021 Record as of September 13, 2026

The record is filling faster than it is clearing. 17 newly opened against 0 certified in 180 days.

The oldest record still open here was filed on September 21, 2023, 35 months before this reading.

Open violation records as of the date shown. A party is named only where the HPD registration on file covers the filing date.

Agency	Filed	Class	Category	Party of record when filed
Class C	137 open most often Vermin / Infestation
HPD	August 25, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	August 25, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	August 25, 2026	C	Fire Safety	RIVERDALE AVENUE PROPERTIES LLC
HPD	August 25, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C	Vermin / Infestation	RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C	Vermin / Infestation	RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	C	Vermin / Infestation	RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	C	Vermin / Infestation	RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	December 16, 2025	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	December 16, 2025	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	December 16, 2025	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	December 16, 2025	C	Vermin / Infestation	RIVERDALE AVENUE PROPERTIES LLC
HPD	December 3, 2025	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	December 3, 2025	C		RIVERDALE AVENUE PROPERTIES LLC
HPD	October 27, 2025	C	Vermin / Infestation	RIVERDALE AVENUE PROPERTIES LLC
HPD	August 29, 2025	C	Heat / Hot Water
HPD	August 29, 2025	C	Vermin / Infestation
HPD	August 29, 2025	C
HPD	August 29, 2025	C
HPD	August 29, 2025	C
HPD	August 6, 2025	C	Vermin / Infestation
HPD	August 6, 2025	C	Vermin / Infestation
HPD	June 25, 2025	C	Fire Safety
HPD	June 25, 2025	C
HPD	June 25, 2025	C	Vermin / Infestation
HPD	June 25, 2025	C	Vermin / Infestation
HPD	May 1, 2025	C	Vermin / Infestation
HPD	May 1, 2025	C
HPD	March 24, 2025	C
HPD	March 24, 2025	C	Vermin / Infestation
HPD	January 7, 2025	C
HPD	November 30, 2024	C
HPD	November 30, 2024	C
HPD	November 30, 2024	C
HPD	November 30, 2024	C
HPD	November 13, 2024	C	Fire Safety
HPD	November 4, 2024	C	Vermin / Infestation
HPD	October 30, 2024	C	Vermin / Infestation
HPD	October 30, 2024	C	Vermin / Infestation
HPD	September 10, 2024	C
HPD	September 10, 2024	C	Vermin / Infestation
HPD	September 10, 2024	C	Vermin / Infestation
HPD	August 24, 2024	C	Vermin / Infestation
HPD	August 24, 2024	C	Vermin / Infestation
HPD	August 2, 2024	C	Vermin / Infestation
HPD	August 2, 2024	C	Vermin / Infestation
HPD	July 26, 2024	C	Vermin / Infestation
HPD	July 20, 2024	C	Vermin / Infestation
HPD	July 20, 2024	C	Vermin / Infestation
HPD	July 20, 2024	C	Fire Safety
HPD	June 28, 2024	C
HPD	June 28, 2024	C
HPD	June 25, 2024	C
HPD	June 17, 2024	C	Vermin / Infestation
HPD	May 21, 2024	C
HPD	May 21, 2024	C
HPD	May 21, 2024	C
HPD	May 21, 2024	C
HPD	May 9, 2024	C	Vermin / Infestation
HPD	May 9, 2024	C	Fire Safety
HPD	April 9, 2024	C	Lead Paint
HPD	March 31, 2024	C	Vermin / Infestation
HPD	March 31, 2024	C	Vermin / Infestation
HPD	March 26, 2024	C
HPD	March 26, 2024	C	Heat / Hot Water
HPD	March 26, 2024	C	Heat / Hot Water
HPD	March 26, 2024	C
HPD	March 26, 2024	C
HPD	March 26, 2024	C
HPD	March 26, 2024	C
HPD	March 26, 2024	C	Heat / Hot Water
HPD	March 26, 2024	C	Vermin / Infestation
HPD	March 26, 2024	C	Vermin / Infestation
HPD	March 26, 2024	C
HPD	March 26, 2024	C
HPD	March 26, 2024	C
HPD	March 23, 2024	C
HPD	March 23, 2024	C
HPD	March 23, 2024	C
HPD	March 23, 2024	C
HPD	March 23, 2024	C	Heat / Hot Water
HPD	March 23, 2024	C
HPD	March 23, 2024	C
HPD	March 23, 2024	C
HPD	March 23, 2024	C	Vermin / Infestation
HPD	March 23, 2024	C	Vermin / Infestation
HPD	March 14, 2024	C
HPD	February 27, 2024	C
HPD	February 23, 2024	C	Heat / Hot Water
HPD	February 23, 2024	C
HPD	February 23, 2024	C
HPD	February 23, 2024	C	Vermin / Infestation
HPD	February 23, 2024	C
HPD	February 23, 2024	C
HPD	February 23, 2024	C
HPD	February 5, 2024	C	Vermin / Infestation
HPD	February 5, 2024	C
HPD	February 5, 2024	C	Vermin / Infestation
HPD	December 6, 2023	C
HPD	December 6, 2023	C	Vermin / Infestation
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C	Lead Paint
HPD	November 30, 2023	C
HPD	November 30, 2023	C
HPD	November 15, 2023	C	Mold
HPD	November 15, 2023	C	Vermin / Infestation
HPD	November 15, 2023	C	Vermin / Infestation
HPD	November 8, 2023	C
HPD	November 8, 2023	C
HPD	November 8, 2023	C
HPD	November 8, 2023	C
HPD	October 19, 2023	C	Mold
HPD	October 19, 2023	C	Vermin / Infestation
HPD	October 19, 2023	C	Vermin / Infestation
HPD	October 4, 2023	C	Mold
Class B	191 open most often Fire Safety
HPD	August 25, 2026	B	Fire Safety	RIVERDALE AVENUE PROPERTIES LLC
HPD	August 25, 2026	B	Fire Safety	RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	July 21, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	B	Mold	RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	B	Fire Safety	RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	B	Fire Safety	RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	January 28, 2026	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	December 16, 2025	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	December 16, 2025	B	Mold	RIVERDALE AVENUE PROPERTIES LLC
HPD	October 27, 2025	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	October 27, 2025	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	October 27, 2025	B		RIVERDALE AVENUE PROPERTIES LLC
HPD	August 29, 2025	B
HPD	August 6, 2025	B
HPD	August 6, 2025	B
HPD	June 25, 2025	B
HPD	June 25, 2025	B
HPD	June 25, 2025	B
HPD	June 25, 2025	B
HPD	June 25, 2025	B
HPD	May 1, 2025	B
HPD	May 1, 2025	B
HPD	May 1, 2025	B
HPD	May 1, 2025	B	Mold
HPD	March 24, 2025	B	Fire Safety
HPD	March 24, 2025	B	Fire Safety
HPD	March 24, 2025	B
HPD	March 24, 2025	B
HPD	March 11, 2025	B
HPD	January 7, 2025	B
HPD	January 7, 2025	B
HPD	January 7, 2025	B
HPD	November 21, 2024	B
HPD	November 21, 2024	B	Fire Safety
HPD	November 21, 2024	B	Fire Safety
HPD	November 13, 2024	B	Fire Safety
HPD	November 13, 2024	B	Fire Safety
HPD	November 13, 2024	B
HPD	November 4, 2024	B	Fire Safety
HPD	November 4, 2024	B	Fire Safety
HPD	October 30, 2024	B	Fire Safety
HPD	October 30, 2024	B	Fire Safety
HPD	October 30, 2024	B
HPD	October 30, 2024	B
HPD	September 12, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B
HPD	September 10, 2024	B	Fire Safety
HPD	September 10, 2024	B	Fire Safety
HPD	August 24, 2024	B
HPD	August 24, 2024	B
HPD	August 24, 2024	B	Fire Safety
HPD	August 24, 2024	B	Fire Safety
HPD	August 24, 2024	B
HPD	August 24, 2024	B
HPD	August 24, 2024	B
HPD	August 24, 2024	B
HPD	August 7, 2024	B	Fire Safety
HPD	August 7, 2024	B	Fire Safety
HPD	August 2, 2024	B
HPD	July 26, 2024	B	Fire Safety
HPD	July 26, 2024	B	Fire Safety
HPD	July 26, 2024	B
HPD	July 20, 2024	B
HPD	July 20, 2024	B	Fire Safety
HPD	July 20, 2024	B	Fire Safety
HPD	July 20, 2024	B	Fire Safety
HPD	July 20, 2024	B	Fire Safety
HPD	July 17, 2024	B
HPD	July 17, 2024	B
HPD	July 17, 2024	B
HPD	July 9, 2024	B
HPD	July 8, 2024	B
HPD	July 8, 2024	B
HPD	July 8, 2024	B
HPD	July 2, 2024	B	Fire Safety
HPD	July 2, 2024	B	Fire Safety
HPD	July 2, 2024	B
HPD	June 28, 2024	B	Mold
HPD	June 28, 2024	B
HPD	June 25, 2024	B
HPD	June 25, 2024	B
HPD	June 25, 2024	B
HPD	June 25, 2024	B
HPD	June 25, 2024	B
HPD	June 17, 2024	B
HPD	June 17, 2024	B	Fire Safety
HPD	May 18, 2024	B
HPD	May 9, 2024	B
HPD	May 9, 2024	B
HPD	April 30, 2024	B
HPD	April 23, 2024	B	Fire Safety
HPD	April 23, 2024	B	Fire Safety
HPD	April 9, 2024	B
HPD	April 9, 2024	B
HPD	April 4, 2024	B
HPD	April 4, 2024	B
HPD	March 31, 2024	B	Fire Safety
HPD	March 31, 2024	B	Fire Safety
HPD	March 31, 2024	B
HPD	March 31, 2024	B
HPD	March 31, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B
HPD	March 26, 2024	B	Fire Safety
HPD	March 26, 2024	B	Fire Safety
HPD	March 26, 2024	B
HPD	March 23, 2024	B
HPD	March 23, 2024	B
HPD	March 23, 2024	B
HPD	March 23, 2024	B
HPD	March 23, 2024	B
HPD	March 23, 2024	B
HPD	March 19, 2024	B
HPD	March 19, 2024	B
HPD	March 19, 2024	B	Fire Safety
HPD	March 19, 2024	B	Fire Safety
HPD	March 19, 2024	B
HPD	March 19, 2024	B
HPD	March 14, 2024	B
HPD	March 14, 2024	B
HPD	March 14, 2024	B
HPD	February 28, 2024	B
HPD	February 23, 2024	B
HPD	February 23, 2024	B
HPD	February 23, 2024	B
HPD	February 23, 2024	B
HPD	February 23, 2024	B
HPD	February 15, 2024	B
HPD	February 7, 2024	B
HPD	February 7, 2024	B
HPD	February 7, 2024	B
HPD	February 7, 2024	B
HPD	February 7, 2024	B
HPD	February 7, 2024	B
HPD	February 7, 2024	B
HPD	February 5, 2024	B
HPD	February 5, 2024	B	Fire Safety
HPD	February 5, 2024	B	Fire Safety
HPD	February 5, 2024	B
HPD	February 5, 2024	B
HPD	February 5, 2024	B
HPD	February 5, 2024	B
HPD	February 5, 2024	B
HPD	December 6, 2023	B	Mold
HPD	December 6, 2023	B
HPD	December 6, 2023	B
HPD	December 6, 2023	B
HPD	November 30, 2023	B
HPD	November 30, 2023	B
HPD	November 15, 2023	B
HPD	November 15, 2023	B
HPD	November 8, 2023	B
HPD	November 8, 2023	B
HPD	November 8, 2023	B
HPD	November 8, 2023	B	Fire Safety
HPD	November 8, 2023	B	Fire Safety
HPD	November 8, 2023	B
HPD	November 8, 2023	B
HPD	November 8, 2023	B
HPD	November 8, 2023	B
HPD	October 19, 2023	B
HPD	October 4, 2023	B
HPD	October 4, 2023	B	Mold
HPD	October 4, 2023	B
HPD	October 4, 2023	B
HPD	September 21, 2023	B
HPD	September 21, 2023	B
HPD	September 21, 2023	B
HPD	September 21, 2023	B
HPD	September 21, 2023	B
HPD	September 21, 2023	B
HPD	September 21, 2023	B	Mold
OATH/ECB	2 open most often Construction
OATH/ECB	June 25, 2026	Class 1	Construction	RIVERDALE AVENUE PROPERTIES LLC
OATH/ECB	October 2, 2025	Class 1	Construction

509 Hinsdale Street, Brooklyn

Questions about this building

Does 509 Hinsdale Street, Brooklyn have open violations?

Is the record at 509 Hinsdale Street, Brooklyn getting better or worse?

How current is this record, and where does it come from?