919 recorded events, 1974–2026, from 21 city data systems. The city's paper trail here is mostly 266 311 service requests, 205 HPD housing violations, 145 HPD complaints.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 65% of 25-99-unit residential buildings citywide. The citywide median for 25-99-unit residential buildings is 23.6 penalty points per 10 units; this building carries 50.9. In ZIP 11213, 61% of residential buildings hold an A and 11% grade D or F. How grades work
Among 17,252 25-99-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 57 total — 31 class C (immediately hazardous), 16 class B, 10 class A. Oldest open since 2018-11-23. |
| Pending HPD litigation | 1 case(s) pending in housing court |
status snapshot refreshed weekly from HPD records
6 heat or hot-water complaints in the last three years (winter 2024–25: 6).
No bedbug-infested units reported in the last three years of filings.
$9,580 in enforcement penalties imposed (ECB/OATH) in the last three years.
109 service requests in the last three years. Most common: Illegal Parking (48) · Noise (35) · UNSANITARY CONDITION (5) · PAINT/PLASTER (3) · HEAT/HOT WATER (3) · For Hire Vehicle Complaint (2).
$1,087,100 in permitted construction work filed since 2016 (13 filings with a declared cost) — a rough measure of how actively the owner maintains the building. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.
| Yes | Built before 1974 (1926) |
| Yes | Six or more residential units (54) |
| No | 421-a / J-51 tax benefit on the current tax roll |
2 of 3 signals present. This is the classic profile of a rent-stabilized building (pre-1974, 6+ units) — many units in such buildings remain stabilized. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).
| Registered owner(s) | ST MARKS AVE HDFC |
| Head officer | NITZA LOPEZ |
| Managing agent | MACK EDGE MANAGEMENT LLC |
| Last registered | 2026-05-12 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $5,253,000 | $2,363,850 |
| 2026 | $5,454,000 | $2,454,300 |
| 2027 | $5,782,000 | $2,601,900 |
The city's market estimate has risen 10% between tax years 2025 and 2027.
Tax exemptions on the roll: ARTICLE XI
For property tax, the Department of Finance values this co-op as if it were a rental building. Its 2022 estimate: gross income $1,152,925 a year ($17.41 per sq ft), operating expenses $487,394 ($7.36 per sq ft), net operating income $665,531. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
| Energy grade (LL33) | B — ENERGY STAR score 75/100 (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | SWARMP — "Safe With A Repair and Maintenance Program": known facade conditions that must be repaired (cycle 10) |
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Not in a hurricane evacuation zone.
Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.
1 street-flooding or sewer-backup complaints at this address since 2022 (0 in the last three years).
Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.
| Subway | Kingston Av — 3 · 0.4 mi straight-line (about a 10-minute walk) · station accessibility: none Kingston-Throop Avs — C · 0.4 mi straight-line (about a 10-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Brooklyn Av / Bergen St — B43 · 350 ft |
| Citi Bike | Brooklyn Ave & Prospect Pl · 200 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 289 George V. Brower Middle: The School of Integrated Learning. Confirm with the DOE's school search. |
Distances are straight-line, not walking routes. Transit locations from the MTA and Citi Bike, bike facilities from NYC DOT, school zones from the DOE's 2024–25 maps.
840 St Marks Avenue
| Heat or hot water | Heat or hot water |
| Apartment maintenance | Apartment maintenance |
| Bed bugs | Bed bugs |
| Residential pests | Residential pests |
| Rats or mice | Rats or mice |
| Anything else | Anything else |
109 311 service requests from this address in the last three years — 3 of them about heat or hot water.
311 will ask for the address, the apartment if the problem is inside, and what's wrong. Contact details are optional for most complaints; food-poisoning reports can be anonymous. Complaints appear in the city's public 311 data, usually within a day or two, and then in the Live from 311 box on this page.
Managed by MACK EDGE MANAGEMENT LLC — 38 buildings, 575 units. Grades across the portfolio: A36 · B1 · D1. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 840 St Marks Avenue | BK | 54 | B |
| 952 St Marks Avenue | BK | 40 | A |
| 315 East 12 Street | MN | 36 | A |
| 321 East 12 Street | MN | 36 | A |
| 221 West 14 Street | MN | 34 | A |
| 1046 Amsterdam Avenue | MN | 24 | A |
| 212 East 13 Street | MN | 23 | A |
| 55 1/2 Downing Street | MN | 20 | A |
| 51 Jane Street | MN | 20 | A |
| 438 West 49 Street | MN | 20 | A |
| 136 West 23 Street | MN | 20 | A |
| 324 East 48 Street | MN | 19 | A |
| 290 West 11 Street | MN | 18 | A |
| 134 Grand Street | MN | 17 | A |
| 398 Bleecker Street | MN | 17 | A |
| 715 9 Avenue | MN | 15 | A |
| 78 Charles Street | MN | 15 | A |
| 48 Great Jones Street | MN | 12 | A |
| 329 West 21 Street | MN | 11 | A |
| 45 West 89 Street | MN | 10 | A |
| 521 East 6 Street | MN | 10 | A |
| 450 East 117 Street | MN | 9 | A |
| 11 West 95 Street | MN | 9 | A |
| 17 West 10 Street | MN | 8 | A |
| 79 Decatur Street | BK | 8 | A |
| 285 Bleecker Street | MN | 8 | A |
| 171 Mac Dougal Street | MN | 8 | A |
| 27 West 10 Street | MN | 7 | A |
| 121 West 92 Street | MN | 7 | A |
| 112 Greene Street | MN | 6 | A |
| 716 Broadway | MN | 5 | D |
| 3 Great Jones Street | MN | 5 | A |
| 119 Spring Street | MN | 4 | A |
| 431 West Broadway | MN | 4 | A |
| 390 West Broadway | MN | 4 | A |
| 427 West Broadway | MN | 4 | A |
| 417 Lafayette Street | MN | 4 | A |
| 76 Franklin Street | MN | 4 | A |
Most recent mortgage recorded against this lot: $3,702,769 on 2022-01-11 (lender: The City Of New York, Acting By And Through Its De). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2026-05-28 | RPTT&RET $500,000 — from STEWART, LLOYD; STEWART, SHERYL to BROWN, TANIESE | $500,000 | |
| 2026-05-20 | Sold for $500,000 | $500,000 | $9,259 |
| 2025-12-11 | RPTT&RET $350,000 — from ANDERSON, ARLENE to ADAMCZAK, EWELINA | $350,000 | |
| 2025-12-01 | Sold for $350,000 | $350,000 | $6,481 |
| 2024-03-29 | RPTT&RET $425,000 — from ALAFIA, JOSHUA BEE to RYAN, ALICE BREDA MARY; DUMAN, CIHANGIR | $425,000 | |
| 2024-03-27 | Sold for $425,000 | $425,000 | $7,870 |
| 2024-03-20 | RPTT&RET $360,000 — from MANNERS, LOUIS; PIRES, SHIRLEY to WELSH, EVAN | $360,000 | |
| 2024-03-12 | Sold for $360,000 | $360,000 | $6,667 |
| 2022-03-31 | RPTT&RET $325,000 — from STITT, BEVERLY to QUEENIE, DOMINIQUE | $325,000 | |
| 2022-03-23 | Sold for $325,000 | $325,000 | $6,019 |
| 2022-01-11 | Mortgage $3,702,769 — from 840-50 ST MARKS AVENUE HOUSING DEVELOPME to THE CITY OF NEW YORK, ACTING BY AND THRO | $3,702,769 | |
| 2022-01-11 | AL&R $3,702,769 — from 840-50 ST MARKS AVENUE HOUSING DEVELOPME to THE CITY OF NEW YORK, ACTING BY AND THRO | $3,702,769 | |
| 2021-02-24 | RPTT&RET $349,000 — from DICKERSON, PHILLIP to CADWALLENDER, MARY | $349,000 | |
| 2021-01-29 | Sold for $349,000 | $349,000 | $6,463 |
| 2020-10-23 | RPTT&RET $570,000 — from O'NEIL, CHARLENE to LOUIE, NICOLE; ZUCKERMAN, MAX | $570,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 1 | 33 | 2 | 2 | 38 |
| 2018 | 3 | 5 | 71 | 8 | 4 | 91 |
| 2019 | 4 | 5 | 13 | 0 | 4 | 26 |
| 2020 | 4 | 1 | 25 | 4 | 1 | 35 |
| 2021 | 3 | 2 | 71 | 3 | 6 | 85 |
| 2022 | 9 | 21 | 24 | 5 | 4 | 63 |
| 2023 | 13 | 19 | 23 | 0 | 13 | 68 |
| 2024 | 4 | 2 | 65 | 4 | 10 | 85 |
| 2025 | 4 | 6 | 78 | 2 | 12 | 102 |
| 2026 | 2 | 2 | 41 | 2 | 3 | 50 |
Every one of the 919 recorded events, 1974–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11213 · Landlord rankings · How grades work · The map · The Mice Map