833 recorded events, 1966–2026, from 18 city data systems. The city's paper trail here is mostly 203 ACRIS deeds & mortgages, 156 DOB permits, 115 311 service requests.
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 100% 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 0. In ZIP 10023, 77% of residential buildings hold an A and 3% 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 | 2 total — 0 class C (immediately hazardous), 0 class B, 2 class A. Oldest open since 2018-04-02. |
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.
11 service requests in the last three years. Most common: Noise (5) · Illegal Parking (3) · Sidewalk Condition (1) · Sewer (1) · Panhandling (1).
$4,630,674 in permitted construction work filed since 2016 (33 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 (1946) |
| Yes | Six or more residential units (124) |
| 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) | RIVERSIDE TOWERS CORP |
| Head officer | KEVIn KORn |
| Managing agent | BROWN HARRIS STEVENS |
| Last registered | 2025-10-28 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $46,636,000 | $20,986,200 |
| 2026 | $47,118,000 | $21,203,100 |
| 2027 | $45,151,000 | $20,317,950 |
The city's market estimate has fallen 3% between tax years 2025 and 2027.
Tax exemptions on the roll: COLD WAR VETERAN - DISABILITY · SENIOR CITIZEN HOMEOWNER
For property tax, the Department of Finance values this co-op as if it were a rental building. Its 2022 estimate: gross income $7,329,884 a year ($42.45 per sq ft), operating expenses $1,906,288 ($11.04 per sq ft), net operating income $5,423,596. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
| Energy grade (LL33) | C — ENERGY STAR score 67/100 (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 | 72 St — 1 2 3 · 850 ft straight-line (about a 4-minute walk) · station accessibility: full |
| Bus | Nearest boarding stop: W 72 St / West End Av — M5 · 100 ft |
| Citi Bike | Riverside Dr & W 72 St · 350 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 199 Jessie Isador Straus. 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.
263 West End Avenue
| 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 |
11 311 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 BROWN HARRIS STEVENS — 160 buildings, 9,488 units. Grades across the portfolio: A156 · B1 · C1. See the whole portfolio
showing 60 of 160 buildings
Most recent mortgage recorded against this lot: $1,205,345 on 2020-02-26 (lender: The Bank Of New York Mellon). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2026-09-08 | RPTT&RET $1,688,000 — from ABRAHAM, SAM EDWARD; ABRAHAM, MARGARET DAVIDSON to BATEN, AMANDA Z; SHUMAN, JAMES L | $1,688,000 | |
| 2026-09-03 | RPTT&RET $837,750 — from MARINELLO, ANTHONY D to GERTZMAN, MELANIE | $837,750 | |
| 2026-08-27 | Sold for $837,750 | $837,750 | $6,756 |
| 2026-08-24 | Sold for $1,688,000 | $1,688,000 | $13,613 |
| 2026-07-15 | RPTT&RET $1,705,000 — from RAPPAPORT, SAMUEL; ALTER, ISAAC L to MARINELLO, ANTHONY D; SCHWARTZ, SHAINA L | $1,705,000 | |
| 2026-06-30 | Sold for $1,705,000 | $1,705,000 | $13,750 |
| 2026-06-25 | RPTT&RET $740,000 — from REISNER, ROSALIND; REISNER, GERALD to NEUBURGER, LEIGH | $740,000 | |
| 2026-06-08 | Sold for $740,000 | $740,000 | $5,968 |
| 2026-01-27 | RPTT&RET $650,000 — from BLOCK, ROBERT HOYT to YOO, BO; GASPER-YOO, VICENTA | $650,000 | |
| 2026-01-12 | Sold for $650,000 | $650,000 | $5,242 |
| 2025-05-19 | RPTT&RET $625,000 — from ZWETSCHKENBAUM, JERRY to KREDITOR, ALISE; ENGLANDER, JEFFREY | $625,000 | |
| 2025-05-05 | Sold for $625,000 | $625,000 | $5,040 |
| 2025-04-28 | RPTT&RET $3,400,000 — from MARSHALL, ABBIE R; MARSHALL, ZACHARY E to DHARAN, ANAND; JAYARAMAN, DIVYA | $3,400,000 | |
| 2025-04-14 | Sold for $3,400,000 | $3,400,000 | $27,419 |
| 2025-04-01 | RPTT&RET $780,000 — from DEBRA ALLEE, CO-EXECUTOR; ESTATE OF TILLY D. COLE; ALICE LICHTENSTEIN, CO-EXECUTOR to VASSOS, JOHN; VASSOS, KATHERINE; VASSOS, ANDREA | $780,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 1 | 4 | 12 | 4 | 21 |
| 2018 | 22 | 0 | 11 | 18 | 5 | 56 |
| 2019 | 7 | 0 | 3 | 14 | 6 | 30 |
| 2020 | 0 | 0 | 20 | 16 | 2 | 38 |
| 2021 | 5 | 4 | 7 | 12 | 2 | 30 |
| 2022 | 16 | 15 | 9 | 17 | 7 | 64 |
| 2023 | 9 | 5 | 9 | 17 | 4 | 44 |
| 2024 | 13 | 1 | 6 | 12 | 5 | 37 |
| 2025 | 3 | 6 | 5 | 10 | 13 | 37 |
| 2026 | 2 | 0 | 2 | 12 | 3 | 19 |
Every one of the 833 recorded events, 1966–2026, is laid out year by year in the full report (print-ready).
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