899 recorded events, 1968–2026, from 19 city data systems. The city's paper trail here is mostly 269 311 service requests, 172 ACRIS deeds & mortgages, 115 DOB permits.
Full record, year by year Support this site
The city's published records show little recorded distress here in the last three years. More recorded distress than 50% 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 3.7. In ZIP 10025, 70% of residential buildings hold an A and 2% 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 — 2 class C (immediately hazardous), 0 class B, 0 class A. Oldest open since 2026-05-28. |
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.
$1,600 in enforcement penalties imposed (ECB/OATH) in the last three years.
95 service requests in the last three years. Most common: Illegal Parking (42) · Noise (13) · Illegal Dumping (6) · Street Condition (5) · Litter Basket Request (4) · Street Sign (4).
$3,713,970 in permitted construction work filed since 2016 (53 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 (1928) |
| Yes | Six or more residential units (123) |
| 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) | 320 RIVERSIDE APARTMENT CORP |
| Head officer | STEVEN R HOFFMAN |
| Managing agent | HOFFMAN MANAGEMENT |
| Last registered | 2025-07-28 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $24,265,000 | $10,919,250 |
| 2026 | $24,368,000 | $10,965,600 |
| 2027 | $28,629,000 | $12,883,050 |
The city's market estimate has risen 18% 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 $5,353,092 a year ($32.37 per sq ft), operating expenses $2,414,431 ($14.60 per sq ft), net operating income $2,938,660. 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 92/100 (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | SWARMP — "Safe With A Repair and Maintenance Program": known facade conditions that must be repaired (cycle 9) |
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.
4 street-flooding or sewer-backup complaints at this address since 2014 (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 | 103 St — 1 · 800 ft straight-line (about a 4-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Riverside Dr / W 103 St — M5 · 350 ft |
| Citi Bike | Riverside Dr & W 104 St · 200 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 145, The Bloomingdale 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.
320 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 |
95 311 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 HOFFMAN MANAGEMENT — 69 buildings, 3,893 units. Grades across the portfolio: A64 · B4 · D1. See the whole portfolio
showing 60 of 69 buildings
Most recent mortgage recorded against this lot: $500,000 on 2026-03-25 (lender: National Consumer Cooperative 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 |
|---|---|---|---|
| 2026-09-28 | Sold for $4,250,000 | $4,250,000 | $34,553 |
| 2026-03-25 | AL&R $500,000 — from 320 RIVERSIDE APARTMENTS CORP to NATIONAL CONSUMER COOPERATIVE BANK | $500,000 | |
| 2026-03-25 | Mortgage $500,000 — from 320 RIVERSIDE APARTMENTS CORP to NATIONAL CONSUMER COOPERATIVE BANK | $500,000 | |
| 2026-03-25 | AL&R $3,700,000 — from 320 RIVERSIDE APARTMENTS CORP to NATIONAL CONSUMER COOPERATIVE BANK | $3,700,000 | |
| 2026-03-25 | Mortgage $3,700,000 — from 320 RIVERSIDE APARTMENTS CORP to NATIONAL CONSUMER COOPERATIVE BANK | $3,700,000 | |
| 2025-11-28 | RPTT&RET $1,475,000 — from JACOB M. WEINREB AS EXECUTOR; THE ESTATE OF SARA WEINREB to DOHERTY, ROBERT | $1,475,000 | |
| 2025-11-20 | Sold for $1,475,000 | $1,475,000 | $11,992 |
| 2025-07-08 | RPTT&RET $1,585,000 — from ESTATE OF SUSANNA WACHTEL; WILLIAM WACHTEL, EXECUTOR to GLASSER, MOLLIE S; GLASSER, JOSHUA M | $1,585,000 | |
| 2025-07-01 | Sold for $1,585,000 | $1,585,000 | $12,886 |
| 2025-04-04 | RPTT&RET $718,000 — from BECKER, LAWRENCE; WEBER, JANE HOLT to MASS, CLIFFORD; MASS, MYRA | $718,000 | |
| 2025-03-25 | Sold for $718,000 | $718,000 | $5,837 |
| 2024-11-04 | RPTT&RET $880,000 — from JACOB M. WEINREB AS EXECUTOR to SAFAVI, FARNOUSH | $880,000 | |
| 2024-10-24 | Sold for $880,000 | $880,000 | $7,154 |
| 2024-09-06 | RPTT&RET $657,500 — from THE ESTATE OF SABINA WEINREB; JACOB M. WEINREB AS EXECUTOR to LEVY, PETER | $657,500 | |
| 2024-08-28 | Sold for $657,500 | $657,500 | $5,346 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 9 | 0 | 9 | 4 | 6 | 28 |
| 2018 | 5 | 0 | 7 | 14 | 5 | 31 |
| 2019 | 13 | 4 | 34 | 8 | 7 | 66 |
| 2020 | 23 | 4 | 36 | 3 | 3 | 69 |
| 2021 | 15 | 1 | 22 | 18 | 3 | 59 |
| 2022 | 15 | 1 | 24 | 13 | 3 | 56 |
| 2023 | 4 | 2 | 40 | 15 | 6 | 67 |
| 2024 | 11 | 1 | 30 | 10 | 6 | 58 |
| 2025 | 6 | 2 | 27 | 8 | 3 | 46 |
| 2026 | 6 | 2 | 45 | 12 | 2 | 67 |
Every one of the 899 recorded events, 1968–2026, is laid out year by year in the full report (print-ready).
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