420 recorded events, 1973–2026, from 18 city data systems. The city's paper trail here is mostly 214 311 service requests, 48 HPD housing violations, 35 HPD complaints.
Full record, year by year Support this site
The city's published records show little recorded distress here in the last three years. More recorded distress than 54% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty points per 10 units; this building carries 19.6. In ZIP 10031, 40% of residential buildings hold an A and 14% grade D or F. How grades work
Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 26 total — 8 class C (immediately hazardous), 9 class B, 9 class A. Oldest open since 2007-06-08. |
| Pending HPD litigation | 1 case(s) pending in housing court |
status snapshot refreshed weekly from HPD records
10 heat or hot-water complaints in the last three years (winter 2025–26: 9).
No bedbug-infested units reported in the last three years of filings.
51 service requests in the last three years. Most common: Noise (42) · HEAT/HOT WATER (4) · Illegal Parking (3) · Illegal Fireworks (1) · Dead/Dying Tree (1).
No permitted work with a declared cost filed in the last decade. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.
| Yes | Built before 1974 (1910) |
| Yes | Six or more residential units (24) |
| 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) | 504 WEST 135TH STREET HOUSING DEVELOPMENT |
| Head officer | LUZ MONELL |
| Managing agent | WEST HARLEM GROUP ASSISTANCE, INC |
| Last registered | 2025-07-18 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $1,543,000 | $694,350 |
| 2026 | $1,511,000 | $679,950 |
| 2027 | $1,233,000 | $554,850 |
The city's market estimate has fallen 20% between tax years 2025 and 2027.
For property tax, the Department of Finance values this co-op as if it were a rental building. Its 2022 estimate: gross income $415,230 a year ($21.79 per sq ft), operating expenses $242,583 ($12.73 per sq ft), net operating income $172,647. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
| Heating fuel | NO2FUEL |
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.
No street-flooding or sewer-backup complaints on record at this address.
Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.
| Subway | 137 St-City College — 1 · 900 ft straight-line (about a 5-minute walk) · station accessibility: partial (Uptown only) 135 St — B C · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: W 135 St / Amsterdam Av — M11 · 150 ft |
| Citi Bike | Amsterdam Ave & W 136 St · 450 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 161 Pedro Albizu Campos. 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.
504 West 135 Street
| 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 |
51 311 service requests from this address in the last three years — 4 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 WEST HARLEM GROUP ASSISTANCE, INC. — 74 buildings, 1,080 units. Grades across the portfolio: A14 · B23 · C25 · D12. See the whole portfolio
showing 60 of 74 buildings
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2023-11-24 | RPTT&RET $335,000 — from DEL ROSARIO, CARMEN to SAWADE, SAMANTHA | $335,000 | |
| 2023-11-08 | Sold for $335,000 | $335,000 | $13,958 |
| 2021-06-07 | RPTT&RET $350,000 — from MENDEZ, ANA A; ESTATE OF ANA CABRERA to ZHANG, JANE YUERAN | $350,000 | |
| 2021-05-21 | Sold for $350,000 | $350,000 | $14,583 |
| 2019-12-04 | RPTT&RET $290,000 — from RUIZ, ELSIE to ZHU, JACKY | $290,000 | |
| 2019-11-22 | Sold for $290,000 | $290,000 | $12,083 |
| 2016-04-21 | RPTT&RET $312,000 — from RAMOS, CARLOS to CHAVEZ ALMORA, JEREMY R; RAMIREZ, GLIANA A | $312,000 | |
| 2016-04-14 | Sold for $312,000 | $312,000 | $13,000 |
| 2014-02-13 | RPTT&RET $249,000 — from DEL ROSARIO, CLAUDINA to RAMOS, CARLOS | $249,000 | |
| 2006-07-13 | Deed $6,000 — from THE CITY OF NEW YORK ACTING BY & THRU DE to 504 WEST 135TH STREET HOUSING DEVELOPMEN | $6,000 |
| Year | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|
| 2017 | 0 | 14 | 0 | 2 | 16 |
| 2018 | 1 | 6 | 2 | 1 | 10 |
| 2019 | 1 | 20 | 2 | 1 | 24 |
| 2020 | 0 | 45 | 2 | 1 | 48 |
| 2021 | 0 | 14 | 2 | 1 | 17 |
| 2022 | 0 | 53 | 0 | 2 | 55 |
| 2023 | 1 | 47 | 2 | 2 | 52 |
| 2024 | 1 | 32 | 0 | 3 | 36 |
| 2025 | 1 | 17 | 0 | 3 | 21 |
| 2026 | 0 | 9 | 0 | 1 | 10 |
Every one of the 420 recorded events, 1973–2026, is laid out year by year in the full report (print-ready).
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