840 Saint Marks Avenue
Top insights
- 31 open hazardous (Class C) violations
- Built before 1939 (1926) — likely subject to NYC lead-paint rules
Class B
Class C
12 months to Aug 2026
rent-stabilized with
DHCR (most recent year)
units (PLUTO)
12 months through June 2026
min walk
(311 complaints)
errands grade
nearby
840 Saint Marks Avenue
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- City records show 57 open HPD violations, 31 immediately hazardous (Class C) at this building. Ask which are still unresolved in the unit and the landlord’s timeline to clear them.
- The oldest open violation on record dates to 2018 — why has it stayed open this long, and is it in or near this unit?
- We found no DHCR rent-stabilization unit count for this building. That is not the same as the building being market-rate — a registration can be on file with no unit figure, or not have been filed at all. Ask the landlord directly whether the unit is rent-stabilized, and request your own rent history from DHCR.
- City Buildings Department records show an open life-safety condition (e.g. unsafe building / hazardous facade) — what is it, and has it actually been resolved, not just re-filed?
- Confirm the condition behind the most recent open violation was actually repaired, not just marked closed: Abate the infestation consisting of mice in the entire apartment.
- Confirm in person that the immediately-hazardous (Class C) conditions — typically heat, hot water, leaks, mold or pests — are genuinely fixed, not just marked closed.
840 Saint Marks Avenue sits in Brooklyn, ZIP 11213. Subway data is currently unavailable for this address.
Building Condition
Oldest open violation: November 2018. HPD marks a violation open until it is certified as corrected, so an old date can mean an unresolved condition or a repair that was never certified.
- 2026-05-07 "§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR NEAR RADIATOR IN THE 1st ROO…"
- 2026-05-07 "HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 2C, 2nd STORY,…"
- 2025-10-19 "§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT NORTH WALL IN THE 2…"
- 2025-09-07 "§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 S FT AT CEILING IN THE…"
- 2025-09-07 "§ 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK AT CEILING IN THE 1st ROOM FROM EAST LOCATED AT APT 6C, 6th…"
- 2026-05-07
- 2025-07-24
- 2024-12-22
- 2024-08-24
- 2024-08-13
- Class C · 31 open · penalty 465 · (15/ea)
- Class B · 16 open · penalty 80 · (5/ea)
- Class A · 10 open · penalty 10 · (1/ea)
- 2026-05-08 · Apt 2B · EMERGENCY · PLUMBING
- 2026-05-04 · Apt 2C · NON EMERGENCY · UNSANITARY CONDITION
- 2026-05-04 · Apt 2C · EMERGENCY · FLOORING/STAIRS
- 2025-04-29
- 2023-10-04 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
- 2023-10-04 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
- 2023-10-04 "FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION"
11 open lead-paint hazard violations on record (most recent 2024). These are HPD violations recorded against the building — not a test of any specific apartment.
7 earlier hazards cited and remediated.
Under NYC Local Law 1 (Admin Code §27-2056.5), lead paint is presumed present in common areas and in apartments where a child under 6 resides, in multiple dwellings built before 1960 (this building: built 1926). The presumption stands unless the owner obtained a lead-free or lead-safe exemption from HPD. Those exemption records aren’t published as open data, so we can’t confirm one either way.
Also on record: 2 procedural §27-2056 violations (failure to file required lead paperwork, most recent 2020) — a records failure, not evidence of a lead hazard.
The Building
Neighborhood & Environment
~1 block 300m
~2-3 blocks
- HARRASSMENT 2: 70
- PETIT LARCENY: 53
- ASSAULT 3 & RELATED OFFENSES: 36
- CRIMINAL MISCHIEF & RELATED OF: 31
- GRAND LARCENY: 30
- HEAT/HOT WATER: 255
- Noise - Residential: 93
- UNSANITARY CONDITION: 83
- Illegal Parking: 80
- Noise - Commercial: 70
- 805 SAINT MARKS AVE
- 789 SAINT MARKS AVE
- 137 KINGSTON AVENUE
- P.S. 289 George V. Brower
- P.S. 093 William H. Prescott
- P.S. 138 Brooklyn
- Satellite East Middle School
- P.S. 138 Brooklyn
- Success Academy Prospect Heights (Brooklyn 6)
- Pathways in Technology Early College High School (
- Paul Robeson High School
- Academy for Health Careers
- Kingston Av
- Kingston-Throop Avs
- Nostrand Av
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Uncommon New York City Charter School #1
- Brooklyn Children's Museum
- Thelma Hill Performing Arts Center
- St. Mark's Playground
- Crown Heights North Association Inc.
- Achievement First Brooklyn High School
Internet providers serving this area
Internet providers available in this area — including fiber:
- Verizon Fiber Up to 2,300 Mbps down · 2,300 Mbps up
- Optimum Cable Up to 940 Mbps down · 35 Mbps up
How to check internet providers before signing an NYC lease →
Source: FCC Broadband Data Collection (NY, rev. May 2026). Wired broadband only — cable + fiber. DSL, satellite, and fixed-wireless not included. Block-level data; actual availability may vary by building.
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