3,124 recorded events, 1971–2026, from 20 city data systems. The city's paper trail here is mostly 1,373 HPD complaints, 1,019 311 service requests, 150 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 60% 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 6.7. In ZIP 11212, 56% 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
| Pending HPD litigation | 1 case(s) pending in housing court |
status snapshot refreshed weekly from HPD records
59 heat or hot-water complaints in the last three years (winter 2023–24: 3 · winter 2024–25: 8 · winter 2025–26: 48). Repeated winter clusters suggest a chronic heating problem.
20 bedbug-infested unit(s) reported in filings over the last three years.
$4,375 in enforcement penalties imposed (ECB/OATH) in the last three years.
402 service requests in the last three years. Most common: Noise (230) · Non (93) · HEAT/HOT WATER (29) · Illegal Fireworks (10) · UNSANITARY CONDITION (8) · Elevator (7).
$1,024,400 in permitted construction work filed since 2016 (13 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.
| No | Built before 1974 (1976) |
| Yes | Six or more residential units (260) |
| Yes | 421-a / J-51 tax benefit on the current tax roll |
2 of 3 signals present. Buildings receiving 421-a or J-51 benefits are generally required to register their units as rent-stabilized for the duration of the benefit. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).
| Registered owner(s) | RIVERDALE OSBORNE TOWERS HOUSING ASSC. LLC |
| Head officer | DEMETRIOS MORAGIANIS |
| Managing agent | Proto Property LLc |
| Last registered | 2026-07-24 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $30,600,000 | $13,770,000 |
| 2026 | $34,810,000 | $15,664,500 |
| 2027 | $37,281,000 | $16,776,450 |
The city's market estimate has risen 22% between tax years 2025 and 2027.
Tax exemptions on the roll: J51
| Facade (Local Law 11) | SAFE (cycle 9) |
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Hurricane evacuation zone 5 of 6 — zone 1 evacuates first.
Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.
2 street-flooding or sewer-backup complaints at this address since 2020 (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 | Rockaway Av — 3 · 700 ft straight-line (about a 3-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Rockaway Av / Riverdale Av — B60 · 650 ft |
| Citi Bike | Riverdale Ave & Osborn St · 300 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: Elementary schools in this district are not zoned. 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.
420 Watkins 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 |
402 311 service requests from this address in the last three years — 29 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 PROTO PROPERTY SERVICES, LLC — 13 buildings, 1,609 units. Grades across the portfolio: A2 · B7 · C3 · D1. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 2950 West 24 Street | BK | 360 | C |
| 280 Livonia Avenue | BK | 264 | B |
| 420 Watkins Street | BK | 260 | B |
| 510 Quincy Street | BK | 192 | B |
| Gates Avenue | BK | 90 | A |
| 384 East 194 Street | BX | 82 | C |
| 108 East Clarke Place | BX | 79 | B |
| 600 East 21 Street | BK | 60 | B |
| 1367 Sterling Place | BK | 56 | A |
| 1652 Popham Avenue | BX | 48 | B |
| 138 Thomas S Boyland St | BK | 45 | B |
| 685 East 183 Street | BX | 45 | C |
| 3860 Broadway | MN | 28 | D |
Most recent mortgage recorded against this lot: $100,057,000 on 2022-12-27 (lender: Walker & Dunlop, LLC), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2022-12-27 | Mortgage $100,057,000 — from HP RIVERDALE OSBORNE TOWERS HOUSING DEVE; RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to WALKER & DUNLOP, LLC | $100,057,000 | |
| 2022-12-27 | RPTT&RET $19,510,698 — from EHP XV INVESTOR, L.P. to HP RIVERDALE OSBORNE TOWERS HOUSING DEVE; RIVERDALE OSBORNE TOWERS UPPER MANAGER L | $19,510,698 | |
| 2011-05-05 | Agreement $4,523,672 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE CITY OF NEW YORK | $4,523,672 | |
| 2011-05-05 | Agreement $18,064,334 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $18,064,334 | |
| 2009-08-13 | Agreement $5,434,243 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $5,434,243 | |
| 2008-01-14 | Mortgage $360,000 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to OSBORNE TOWERS HOUSING DEVELOPMENT FUND | $360,000 | |
| 2008-01-14 | AL&R $24,391,663 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $24,391,663 | |
| 2008-01-14 | Mortgage $3,592,343 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $3,592,343 | |
| 2008-01-14 | Mortgage $13,967,420 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $13,967,420 | |
| 2008-01-14 | Agreement $1,397,657 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $1,397,657 | |
| 2008-01-14 | Agreement $5,434,243 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $5,434,243 | |
| 2008-01-14 | Mortgage $1,127,616 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $1,127,616 | |
| 2008-01-14 | Mortgage $2,077,920 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $2,077,920 | |
| 2008-01-14 | Agreement $3,205,536 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $3,205,536 | |
| 2008-01-14 | Mortgage $270,041 — from RIVERDALE OSBORNE TOWERS HOUSING ASSOCIA to THE COMMUNITY PRESERVATION CORPORATION | $270,041 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 5 | 29 | 0 | 2 | 36 |
| 2018 | 3 | 2 | 38 | 0 | 4 | 47 |
| 2019 | 1 | 1 | 79 | 0 | 2 | 83 |
| 2020 | 3 | 20 | 80 | 0 | 2 | 105 |
| 2021 | 8 | 7 | 76 | 1 | 0 | 92 |
| 2022 | 12 | 7 | 69 | 9 | 2 | 99 |
| 2023 | 13 | 7 | 118 | 0 | 1 | 139 |
| 2024 | 8 | 10 | 134 | 0 | 1 | 153 |
| 2025 | 0 | 1 | 162 | 2 | 0 | 165 |
| 2026 | 0 | 0 | 177 | 1 | 0 | 178 |
Every one of the 3,124 recorded events, 1971–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11212 · Landlord rankings · How grades work · The map · The Mice Map