490 recorded events, 1969–2026, from 14 city data systems. The city's paper trail here is mostly 176 HPD housing violations, 131 311 service requests, 104 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 80% 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 87. 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 | 93 total — 9 class C (immediately hazardous), 51 class B, 33 class A. Oldest open since 1996-05-09. |
status snapshot refreshed weekly from HPD records
No heat or hot-water complaints in the last three years.
No bedbug-infested units reported in the last three years of filings.
31 service requests in the last three years. Most common: PAINT/PLASTER (4) · Rodent (4) · PLUMBING (4) · DOOR/WINDOW (3) · GENERAL (3) · UNSANITARY CONDITION (3).
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 (1906) |
| Yes | Six or more residential units (14) |
| 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) | 420-424 W 146TH STREET, HDFC |
| Head officer | QUENTIN TYLER |
| Managing agent | 10K MANAGEMENT INC |
| Last registered | 2025-07-17 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $1,300,000 | $585,000 |
| 2026 | $1,487,000 | $669,150 |
| 2027 | $1,506,000 | $677,700 |
The city's market estimate has risen 16% 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 $309,293 a year ($24.45 per sq ft), operating expenses $146,614 ($11.59 per sq ft), net operating income $162,679. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
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 | 145 St — A B C D · 350 ft straight-line (about a 2-minute walk) · station accessibility: none 145 St — 1 · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: W 145 St / Convent Av — Bx19 · 200 ft |
| Citi Bike | W 145 St & Amsterdam Ave · 450 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 153 Adam Clayton Powell Middle: 319, 324. 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.
424 West 146 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 |
31 311 service requests from this address in the last three years.
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 10K MANAGEMENT INC — 6 buildings, 67 units. Grades across the portfolio: B4 · D1. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 1931 Madison Avenue | MN | 25 | B |
| 420 West 146 Street | MN | 14 | B |
| 424 West 146 Street | MN | 14 | B |
| 430 West 46 Street | MN | 8 | B |
| 195 Malcolm X Boulevard | BK | 6 | D |
| 1020950032 | — | — |
Most recent mortgage recorded against this lot: $1 on 1995-08-17 (lender: NYC Hpd), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2023-09-28 | RPTT&RET $150,000 — from 420-24 WEST 146 STREET HDFC to RIVERA, NGUYEN I | $150,000 | |
| 2023-09-21 | Sold for $150,000 | $150,000 | $10,714 |
| 2007-07-17 | RPTT&RET $159,000 — from 420-424 WEST 146TH STREET HDFC to ASHCHEULOVA, ELVIRA; ASHSCHEULOV, ALEXANDER | $159,000 |
| Year | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|
| 2017 | 0 | 8 | 0 | 3 | 11 |
| 2018 | 1 | 42 | 0 | 1 | 44 |
| 2019 | 0 | 8 | 0 | 0 | 8 |
| 2020 | 0 | 13 | 0 | 0 | 13 |
| 2021 | 0 | 11 | 0 | 0 | 11 |
| 2022 | 0 | 12 | 0 | 2 | 14 |
| 2023 | 0 | 64 | 2 | 3 | 69 |
| 2024 | 0 | 44 | 0 | 5 | 49 |
| 2025 | 1 | 8 | 0 | 4 | 13 |
| 2026 | 1 | 17 | 0 | 3 | 21 |
Every one of the 490 recorded events, 1969–2026, is laid out year by year in the full report (print-ready).
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