840 Greene Avenue

840 Greene Avenue in Bed-Stuy, Brooklyn, has 9 open HPD violations, 1 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: D (60/100).

Multi-family walk-up · 3 units · Built 1899

StreetSpy grade: D (Poor, 60/100)

• 1 immediately hazardous violation open (the class that covers no heat, pests, lead paint and similar).
• 1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• The head officer on this registration is named on 4 buildings' registrations; 2 graded D or F.
• No rent-stabilized units on the tax bill. Increases aren't capped by stabilization, though Good Cause Eviction may still limit them.

More open violations per unit than 7 in 10 Brooklyn buildings this size.

• Repairs: High (9 open, 1 class C), records as of Oct 26, 2026
• Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
• Pests: Clear (Owner reported none, 3 yr), records as of Oct 28, 2026
• Safety: Clear (No open DOB violations), records as of Oct 26, 2026
• Registration: Expired Sep 1, 2025, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

9 open violations: 1 class C (immediately hazardous), 1 class B, 6 class A, 1 class I (HPD orders such as lead paint or heat orders, not a hazard class). 1 issued in the last 12 months. 19 on record. Oldest open violation issued 2025-04-02. Newest violation issued 2026-05-04.

HPD recorded no violation closed here in the last 12 months.

1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

• Class C: No heat / heating defect (entrance). POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM .. AT LOBBY, 1st STORY, issued 2025-04-02. HPD violation 13153560
• Class B: Fire escape defect. FIRE ESCAPE DEFECTIVE. ADJUST THE DROPLADDER SO THAT IT WILL SLIDE EASILY IN THE GUIDE RODS .., issued 2025-04-02. HPD violation 5120462
• Class A: Bedbugs. (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS., issued 2026-05-04. HPD violation 18869915
• Class A: Gas defect (entrance). HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLLOWED WHEN A GAS LEAK IS SUSPECTED AT LOBBY, 1st STORY, issued 2025-04-02. HPD violation 13153548
• Class A: Electrical defect (hallway). REPLACE WITH STANDARD WIRE GLASS THE PRESENT GLASS AT THE SKYLIGHT AT PUBLIC HALL, 3rd STORY, issued 2025-04-02. HPD violation 13153514
• Class A: Missing or broken smoke / CO detector (entrance). POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX .. AT LOBBY, 1st STORY, issued 2025-04-02. HPD violation 13153568
• Class A: Missing or broken smoke / CO detector (entrance). HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN A PRIVATE DWELLING. AT LOBBY, 1st STORY, issued 2025-04-02. HPD violation 13153583
• Class A: Damaged plaster or paint (entrance). POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND THE ADDRESS OF THE BUILDING. AT LOBBY, 1st STORY, issued 2025-04-02. HPD violation 13153577

311 housing complaints

0 in the last 12 months, 0 in 5 years.

Bedbugs

The owner reported 0 infested units in the last 3 years of filings. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.

• 2026: No bedbug filing on record for this year
• 2025: Owner reported 0 infested units
• 2024: Owner reported 0 infested units
• 2023: Owner reported 0 infested units
• 2022: Owner reported 0 infested units
• 2021: Owner reported 0 infested units

Buildings department (DOB)

No open DOB violations. 0 DOB violations on record. Check on DOB BIS.

Evictions and housing court

0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

No rent-stabilized units on the tax bill.

Owner and management

Owner: 840 GREENE DCG LLC. Head officer: JINKAI GAO. Managing agent: JINKAI GAO. This owner has 4 buildings on record, 2 graded D or F. See the full portfolio.

Last HPD registration Sep 27, 2024. HPD registration expired Sep 1, 2025 and had not been renewed as of Oct 3, 2026. Buildings with 3+ units must register with HPD every year.

Tax lot and city IDs

BBL 3016200035, HPD building ID 304556. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Kosciuszko St (J), 7 min walk
• Myrtle Av (M, J, Z), 10 min walk
• Gates Av (J, Z), 13 min walk

How the grade is calculated

Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-28.