971 recorded events, 1900–2026, from 20 city data systems. The city's paper trail here is mostly 196 DOB permits, 154 311 service requests, 147 ACRIS deeds & mortgages.
Full record, year by year Support this site
The city's published records show little recorded distress here in the last three years. Less recorded distress than 63% 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 11.3. In ZIP 10024, 70% of residential buildings hold an A and 2% 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 | 105 total — 5 class C (immediately hazardous), 69 class B, 31 class A. Oldest open since 1996-12-27. |
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: Noise (5) · Encampment (4) · New Tree Request (3) · Overgrown Tree/Branches (2) · UNSANITARY CONDITION (2) · Dead/Dying Tree (2).
$5,346,181 in permitted construction work filed since 2016 (59 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 (1938) |
| Yes | Six or more residential units (93) |
| 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) | 100 RIVERSIDE CORP. |
| Head officer | TOM REIMEN |
| Managing agent | DOUGLAS ELLIMAN PROPERTY MANAGEMENT |
| Last registered | 2025-07-11 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $38,844,000 | $17,479,800 |
| 2026 | $39,190,000 | $17,635,500 |
| 2027 | $41,348,000 | $18,606,600 |
The city's market estimate has risen 6% between tax years 2025 and 2027.
Tax exemptions on the roll: COLD WAR VETERAN - DISABILITY
For property tax, the Department of Finance values this co-op as if it were a rental building. Its 2022 estimate: gross income $7,016,133 a year ($41.52 per sq ft), operating expenses $2,490,795 ($14.74 per sq ft), net operating income $4,525,338. 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 86/100 (2022 disclosure cycle) |
| Heating fuel | NO2FUEL |
| Facade (Local Law 11) | SAFE (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 | 79 St — 1 · 0.2 mi straight-line (about a 5-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Riverside Dr / W 82 St — M5 · 100 ft |
| Citi Bike | Riverside Dr & W 82 St · 150 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 009 Sarah Anderson. 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.
100 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 |
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 DOUGLAS ELLIMAN PROPERTY MANAGEMENT — 313 buildings, 53,552 units. Grades across the portfolio: A294 · B9 · C2 · D3. See the whole portfolio
showing 60 of 313 buildings
Most recent mortgage recorded against this lot: $2,500,000 on 2021-11-17 (lender: Investors Bank). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2026-08-12 | RPTT&RET $1,325,000 — from LM 100 RSD LLC; 1996 100 RSD LLC to ZORNITSKY, ELLIOTT | $1,325,000 | |
| 2026-08-10 | RPTT&RET $1,425,000 — from LM 100 RSD LLC; 1996 100 RSD LLC to JAMES L. PERKINS, JR. AS TRUSTEE; JOINT REVO LVNG TRUST OF JAMES & SUSAN P; SUSAN CAUDILL | $1,425,000 | |
| 2026-08-04 | Sold for $1,325,000 | $1,325,000 | $14,247 |
| 2026-07-30 | Sold for $1,425,000 | $1,425,000 | $15,323 |
| 2026-03-02 | RPTT&RET $2,950,000 — from LM 100 RSD LLC; 1996 100 RSD LLC to ROSEMARIE SWEENEY AS TRUSTEE; ROSEMARIE SWEENEY 2024 REVOCABLE TRUST A | $2,950,000 | |
| 2026-02-18 | Sold for $2,950,000 | $2,950,000 | $31,720 |
| 2025-12-23 | RPTT&RET $1,900,000 — from MARY KATHRYN RYAN, AS EXECUTOR; ESTATE OF ANTHONY SACCOMANO A/K/A ANTHON to MIHELAKIS, CHRISSOULA; MARDON, LESLEY | $1,900,000 | |
| 2025-12-09 | Sold for $1,900,000 | $1,900,000 | $20,430 |
| 2025-12-04 | RPTT&RET $1,750,000 — from RSP 82 PROPERTY LLC to CHEN, LILLIAN; LIU, DAVID | $1,750,000 | |
| 2025-11-21 | Sold for $1,750,000 | $1,750,000 | $18,817 |
| 2025-08-15 | RPTT&RET $1,425,000 — from KATZEN, SUE L to LANE, LAURA | $1,425,000 | |
| 2025-08-01 | RPTT&RET $2,560,000 — from HAY, ALEXEI to LIU, DANIEL | $2,560,000 | |
| 2025-07-31 | Sold for $1,425,000 | $1,425,000 | $15,323 |
| 2025-05-27 | RPTT&RET $2,335,000 — from KIERANS, JENNIFER; JULIEN, BARRY to ZENO, ROBERTA; VISMARA, DANIELE | $2,335,000 | |
| 2025-05-14 | Sold for $2,335,000 | $2,335,000 | $25,108 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 21 | 3 | 6 | 2 | 4 | 36 |
| 2018 | 8 | 1 | 58 | 4 | 23 | 94 |
| 2019 | 1 | 2 | 36 | 3 | 4 | 46 |
| 2020 | 10 | 0 | 12 | 4 | 2 | 28 |
| 2021 | 14 | 1 | 14 | 9 | 3 | 41 |
| 2022 | 11 | 1 | 10 | 26 | 7 | 55 |
| 2023 | 7 | 1 | 63 | 16 | 3 | 90 |
| 2024 | 15 | 1 | 10 | 10 | 4 | 40 |
| 2025 | 11 | 4 | 33 | 11 | 3 | 62 |
| 2026 | 14 | 0 | 26 | 6 | 3 | 49 |
Every one of the 971 recorded events, 1900–2026, is laid out year by year in the full report (print-ready).
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