840 St Marks Avenue

840 St Marks Avenue in Crown Heights, Brooklyn, has 66 open HPD violations, 31 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: F (49/100).

Co-op (HDFC) · Multi-family elevator · 54 units · Built 1926

A limited-equity co-op held by a Housing Development Fund Corporation: the residents own shares, so a rental here is a sublet that usually needs board approval, and HDFC co-ops often limit sublets and resale prices. Co-op units are not rent-stabilized. How HDFCs are ranked

StreetSpy grade: F (Severe, 49/100)

• 31 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 3 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 1 eviction carried out by marshals in the last 3 years.
• A co-op: renting here is a sublet, usually with board approval and a time limit; units are not rent-stabilized.

• Repairs: High (66 open, 31 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 (1 open DOB violation), records as of Oct 26, 2026
• Registration: Renewal not yet in city data, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

66 open violations: 31 class C (immediately hazardous), 24 class B, 11 class A. 5 issued in the last 12 months. 214 on record. Oldest open violation issued 2018-11-28. Newest violation issued 2026-06-02.

2 closed in the last 90 days. Median 75 days from issue to close for the 6 violations closed in the last 12 months.

3 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

• Class C: Mice, throughout the apartment, 2nd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 2C, 2nd STORY, 2nd APARTMENT FROM WEST AT NORTH (apt 2C), issued 2026-05-11. HPD violation 18877795
• Class C: Mice, throughout the apartment, 2nd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 2C, 2nd STORY, 2nd APARTMENT FROM WEST AT NORTH (apt 2C), issued 2025-07-25. HPD violation 18111818
• Class C: Missing window guards, throughout the apartment, 6th floor. HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 05; WG TO REPLACE = 0; WG TO REPAIR = 0; IN THE ENTIRE APARTMENT LOCATED AT APT 6H, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 6H), issued 2025-04-25. HPD violation 17857083
• Class C: Lead paint hazard, kitchen, 1st floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) WEST WALL IN THE KITCHEN LOCATED AT APT 1B, 1st STORY, 5th APARTMENT FROM SOUTH AT WEST (apt 1B), issued 2024-12-23. HPD violation 17577805
• Class C: Roaches, throughout the apartment, 1st floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1B, 1st STORY, 5th APARTMENT FROM SOUTH AT WEST (apt 1B), issued 2024-12-23. HPD violation 17572605
• Class C: Lead paint hazard, 5th room from the east, 1st floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) WEST WALL IN THE 5th ROOM FROM EAST AT NORTH LOCATED AT APT 1B, 1st STORY, 5th APARTMENT FROM SOUTH AT WEST (apt 1B), issued 2024-12-23. HPD violation 17577806
• Class C: Lead paint hazard, bathroom, 1st floor. - CORRECT THE LEAD-BASED PAINT HAZARD-PAINT THAT IS XRF TESTED INCONCLUSIVE FOR LEAD CONTENT AT 0.5MG/CM2 AND IS PRESUMED LEAD PAINT AS SET FORTH IN (28 RCNY §11-07(b)) AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE-USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(b)(2) SOUTH WALL, EAST WALL IN THE BATHROOM LOCATED AT APT 1B, 1st STORY, 5th APARTMENT FROM SOUTH AT WEST (apt 1B), issued 2024-12-23. HPD violation 17577807
• Class C: Lead paint hazard, 2nd window frame from the west, north wall, 3rd room from the east, 1st floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) 2nd WINDOW FRAME FROM WEST AT NORTH WALL IN THE 3rd ROOM FROM EAST LOCATED AT APT 1B, 1st STORY, 5th APARTMENT FROM SOUTH AT WEST (apt 1B), issued 2024-12-23. HPD violation 17577808

311 housing complaints

7 in the last 12 months, 22 in 5 years. Most common: Plumbing (2), Unsanitary Condition (2), Water Leak (2), Paint/Plaster (1).

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)

1 open DOB violation, a Local Law violation issued before 2000. 5 DOB violations on record. Check on DOB BIS.

Evictions and housing court

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

Rent stabilization

No rent-stabilized units on the tax bill.

Owner and management

Owner: ST MARKS AVE HDFC. Head officer: NITZA LOPEZ. Managing agent: MACK EDGE MANAGEMENT LLC. See the full portfolio.

Last HPD registration May 12, 2026. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3012280037, HPD building ID 375015. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Kingston Av (3), 8 min walk
• Kingston-Throop Avs (C), 8 min walk
• Nostrand Av (3), 9 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.