5,385 recorded events, 1966–2026, from 22 city data systems. The city's paper trail here is mostly 1,964 HPD complaints, 1,591 311 service requests, 1,013 HPD housing violations.
Full record, year by year Support this site
A meaningful record of code violations or complaints relative to its peers. More recorded distress than 94% 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 280.5. In ZIP 10031, 40% of residential buildings hold an A and 14% 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 | 216 total — 119 class C (immediately hazardous), 82 class B, 15 class A. Oldest open since 1994-01-24. |
| Pending HPD litigation | 2 case(s) pending in housing court |
| Active vacate order | 8 unit(s) under an unrescinded HPD vacate order |
| Alternative Enforcement | currently in HPD's worst-buildings program |
status snapshot refreshed weekly from HPD records
538 heat or hot-water complaints in the last three years (winter 2023–24: 78 · winter 2024–25: 89 · winter 2025–26: 281). Repeated winter clusters suggest a chronic heating problem.
1 bedbug-infested unit(s) reported in filings over the last three years.
$51,280 in enforcement penalties imposed (ECB/OATH) in the last three years.
482 service requests in the last three years. Most common: HEAT/HOT WATER (258) · UNSANITARY CONDITION (27) · PLUMBING (22) · Elevator (19) · Noise (17) · DOOR/WINDOW (15).
$2,046,475 in permitted construction work filed since 2016 (22 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 (1910) |
| Yes | Six or more residential units (62) |
| 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) | 618 RIVERSIDE DRIVE OWNERS INC |
| Head officer | SOCRATES MOUTSAKIS |
| Managing agent | GUIDANCE MANAGEMENT CORP |
| Last registered | 2026-01-16 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $6,046,000 | $2,720,700 |
| 2026 | $6,920,000 | $3,114,000 |
| 2027 | $7,202,000 | $3,240,900 |
The city's market estimate has risen 19% 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 $1,550,925 a year ($20.34 per sq ft), operating expenses $853,238 ($11.19 per sq ft), net operating income $697,688. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
| Energy grade (LL33) | A — ENERGY STAR score 100/100 (2022 disclosure cycle) |
| Heating fuel | NO4FUEL |
| 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.
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 · 650 ft straight-line (about a 3-minute walk) · station accessibility: partial (Uptown only) |
| Bus | Nearest boarding stop: Riverside Dr / W 139 St — M11 · 100 ft |
| Citi Bike | Riverside Dr & W 138 St · 200 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 West 139 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 |
482 311 service requests from this address in the last three years — 258 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 GUIDANCE REALTY CORP — 13 buildings, 213 units. Grades across the portfolio: A8 · B4 · C1. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 640 West 139 Street | MN | 62 | C |
| 311 West 95 Street | MN | 32 | B |
| 159 West 80 Street | MN | 20 | A |
| 148 West 77 Street | MN | 12 | A |
| 349 Amsterdam Avenue | MN | 12 | A |
| 47 West 86 Street | MN | 10 | A |
| 161 West 80 Street | MN | 10 | B |
| 113 West 85 Street | MN | 10 | B |
| 138 West 81 Street | MN | 10 | B |
| 127 West 92 Street | MN | 9 | A |
| 127 West 85 Street | MN | 9 | A |
| 143 West 80 Street | MN | 9 | A |
| 136 West 80 Street | MN | 8 | A |
Most recent mortgage recorded against this lot: $1,021,492 on 1989-11-24 (lender: Moutsakis, Panagiotis and Tsiskakis, Kostas). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2024-01-12 | RPTT&RET $756,844 — from TSISKAKIS, KONSTANTINE to CETIN, GULCAN | $756,844 | |
| 2023-12-27 | Sold for $756,844 | $756,844 | $12,207 |
| 2023-06-08 | RPTT&RET $425,000 — from PORGES, MICHAEL to MARK, LINDA R; STAHLY, PRESTON | $425,000 | |
| 2023-06-06 | Sold for $425,000 | $425,000 | $6,855 |
| 2022-10-31 | RPTT&RET $170,000 — from THE ESTATE OF ROBERTA SAUNDERS-GRAY; RUTH SAUNDERS, EXECUTOR to TSISKAKIS, DONNA LEE | $170,000 | |
| 2022-10-27 | Sold for $170,000 | $170,000 | $2,742 |
| 2022-03-03 | RPTT&RET $585,000 — from APT. 66 618 RSD LLC to ILIACHENKO, OLGA | $585,000 | |
| 2022-02-22 | Sold for $585,000 | $585,000 | $9,435 |
| 2022-02-15 | RPTT&RET $810,000 — from TSISKAKIS, KONSTANTINE to COLGAN, TARA; SHAHRIAR, RYHAN CHARLES | $810,000 | |
| 2022-02-01 | Sold for $810,000 | $810,000 | $13,065 |
| 2019-08-06 | RPTT&RET $546,946 — from TSISKAKIS, KONSTANTINE to PARIS, VACLAV | $546,946 | |
| 2019-08-02 | Sold for $546,946 | $546,946 | $8,822 |
| 2019-07-22 | RPTT&RET $565,040 — from TSISKAKIS, KONSTANTINE to CLARK, ANNA FONTAINE; DE LA CRUZ, RAMON N | $565,040 | |
| 2019-07-18 | Sold for $565,040 | $565,040 | $9,114 |
| 2018-04-30 | RPTT&RET $580,402 — from TSISKAKIS, KONSTANTINE to TRIVEDI, ASEEM CHANDRA | $580,403 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 18 | 186 | 3 | 6 | 213 |
| 2018 | 0 | 18 | 152 | 2 | 4 | 176 |
| 2019 | 6 | 50 | 92 | 4 | 7 | 159 |
| 2020 | 4 | 39 | 145 | 0 | 1 | 189 |
| 2021 | 1 | 54 | 419 | 0 | 1 | 475 |
| 2022 | 3 | 4 | 315 | 6 | 5 | 333 |
| 2023 | 13 | 25 | 313 | 3 | 6 | 360 |
| 2024 | 6 | 20 | 301 | 1 | 7 | 335 |
| 2025 | 5 | 19 | 434 | 0 | 4 | 462 |
| 2026 | 9 | 40 | 281 | 0 | 4 | 334 |
Every one of the 5,385 recorded events, 1966–2026, 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