4,649 recorded events, 1900–2026, from 21 city data systems. The city's paper trail here is mostly 1,531 HPD complaints, 1,131 311 service requests, 1,056 HPD housing violations.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 77% of 100+-unit residential buildings citywide. The citywide median for 100+-unit residential buildings is 3.7 penalty points per 10 units; this building carries 21.7. In ZIP 10031, 40% of residential buildings hold an A and 14% grade D or F. How grades work
Among 4,677 100+-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 41 total — 22 class C (immediately hazardous), 15 class B, 4 class A. Oldest open since 1996-03-26. |
status snapshot refreshed weekly from HPD records
34 heat or hot-water complaints in the last three years (winter 2023–24: 4 · winter 2025–26: 12 · winter 2026–27: 8). Repeated winter clusters suggest a chronic heating problem.
2 bedbug-infested unit(s) reported in filings over the last three years.
$6,280 in enforcement penalties imposed (ECB/OATH) in the last three years.
206 service requests in the last three years. Most common: Noise (49) · FLOORING/STAIRS (18) · HEAT/HOT WATER (17) · UNSANITARY CONDITION (13) · Construction Lead Dust (13) · PLUMBING (12).
$19,186,420 in permitted construction work filed since 2016 (28 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 (1914) |
| Yes | Six or more residential units (134) |
| 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) | GP UHAB HOUSING DEVELOPMENT FUND CORPORATION |
| Head officer | MARGY BROWN |
| Managing agent | CONCORD MANAGEMENT OF NY, LLC |
| Last registered | 2025-08-19 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $6,814,000 | $3,066,300 |
| 2026 | $8,032,000 | $3,614,400 |
| 2027 | $7,481,000 | $3,366,450 |
The city's market estimate has risen 10% between tax years 2025 and 2027.
Tax exemptions on the roll: ARTICLE XI
| Energy grade (LL33) | D — ENERGY STAR score 51/100, posted at the entrance by law (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | UNSAFE — unsafe conditions reported (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 2023 (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 | 145 St — 1 · 0.2 mi straight-line (about a 5-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Riverside Dr / W 142 St — M11 · 250 ft |
| Citi Bike | W 140 St & Riverside Dr · 400 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 192 Jacob H. Schiff Middle: Harold O. Levy School. 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.
640 Riverside Drive
| 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 |
206 311 service requests from this address in the last three years — 17 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 CONCORD MANAGEMENT OF NY LLC — 301 buildings, 7,382 units. Grades across the portfolio: A20 · B63 · C84 · D80 · F52. See the whole portfolio
showing 60 of 301 buildings
Most recent mortgage recorded against this lot: $3,123,504 on 2025-05-12 (lender: Charis Consulting LLC). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2025-05-12 | AL&R $3,565,291 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $3,565,291 | |
| 2025-05-12 | Agreement $9,037,388 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $9,037,388 | |
| 2025-05-12 | Agreement $5,471,893 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $5,471,893 | |
| 2025-05-12 | Agreement $1,097,491 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $1,097,491 | |
| 2025-05-12 | Mortgage $4,484,945 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $4,484,945 | |
| 2025-05-12 | Agreement $25,957,027 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $25,957,027 | |
| 2025-05-12 | Mortgage $7,506,939 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $7,506,939 | |
| 2025-05-12 | Mortgage $3,565,291 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $3,565,291 | |
| 2025-05-12 | AL&R $7,506,939 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $7,506,939 | |
| 2025-05-12 | Mortgage $3,123,504 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CHARIS CONSULTING LLC | $3,123,504 | |
| 2025-05-12 | AL&R $4,484,945 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $4,484,945 | |
| 2025-03-17 | Agreement $3,310,458 — from GP-UHAB HOUSING DEVELOPMENT FUND CORP to NYC DEPT OF HOUSING PRESERVATION & DEVEL | $3,310,458 | |
| 2025-03-12 | Agreement $26,738,053 — from GP-UHAN HOUSING DEVELOPMENT FUND CORPORA; SHUHAB HOUSING DEVELOPMENT FUND CORPORAT to THE CITY OF NEW YORK | $26,738,053 | |
| 2022-07-19 | Agreement $25,957,027 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $25,957,027 | |
| 2022-07-19 | Agreement $1,097,491 — from GP-UHAB HOUSING DEVELOPMENT FUND CORPORA to CPC FUNDING SPE 1 LLC | $1,097,491 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 2 | 9 | 136 | 2 | 2 | 151 |
| 2018 | 8 | 10 | 84 | 21 | 7 | 130 |
| 2019 | 12 | 8 | 115 | 0 | 9 | 144 |
| 2020 | 16 | 15 | 116 | 0 | 5 | 152 |
| 2021 | 24 | 9 | 137 | 0 | 4 | 174 |
| 2022 | 8 | 10 | 186 | 11 | 12 | 227 |
| 2023 | 11 | 19 | 179 | 0 | 7 | 216 |
| 2024 | 3 | 14 | 124 | 0 | 8 | 149 |
| 2025 | 6 | 3 | 92 | 18 | 4 | 123 |
| 2026 | 10 | 2 | 148 | 0 | 7 | 167 |
Every one of the 4,649 recorded events, 1900–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 10031 · Landlord rankings · How grades work · The map · The Mice Map