1,716 recorded events, 1966–2026, from 19 city data systems. The city's paper trail here is mostly 604 HPD complaints, 554 311 service requests, 290 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 75% 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 84.5. In ZIP 11226, 60% of residential buildings hold an A and 10% 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 | 11 total — 8 class C (immediately hazardous), 3 class B, 0 class A. Oldest open since 2018-10-06. |
status snapshot refreshed weekly from HPD records
24 heat or hot-water complaints in the last three years (winter 2024–25: 6 · winter 2025–26: 18). Repeated winter clusters suggest a chronic heating problem.
2 bedbug-infested unit(s) reported in filings over the last three years.
$625 in enforcement penalties imposed (ECB/OATH) in the last three years.
89 service requests in the last three years. Most common: Noise (38) · HEAT/HOT WATER (12) · PLUMBING (8) · PAINT/PLASTER (6) · WATER LEAK (4) · FLOORING/STAIRS (3).
$44,000 in permitted construction work filed since 2016 (4 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 (1931) |
| Yes | Six or more residential units (60) |
| Yes | 421-a / J-51 tax benefit on the current tax roll |
3 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) | 600 EAST 21 STREET, LLC |
| Head officer | DEMETRIOS MORAGIANIS |
| Managing agent | PROTO PROPERTY SERVICES, LLC |
| Last registered | 2026-07-20 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $3,853,000 | $1,733,850 |
| 2026 | $3,267,000 | $1,470,150 |
| 2027 | $3,213,000 | $1,445,850 |
The city's market estimate has fallen 17% between tax years 2025 and 2027.
Tax exemptions on the roll: J51
| Energy grade (LL33) | D — ENERGY STAR score 40/100, posted at the entrance by law (2022 disclosure cycle) |
| Heating fuel | NO2FUEL |
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Hurricane evacuation zone 6 of 6 — zone 1 evacuates first.
Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.
1 street-flooding or sewer-backup complaints at this address since 2016 (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 | Cortelyou Rd — Q · 0.3 mi straight-line (about a 9-minute walk) · station accessibility: none Newkirk Plaza — B Q · 0.4 mi straight-line (about a 10-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Foster Av / E 22 St — B8 B49 · 800 ft |
| Citi Bike | Cortelyou Rd & E 19 St · 0.3 mi · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: 152, 315 Middle: J.H.S. 062 Ditmas. 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.
600 East 21 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 |
89 311 service requests from this address in the last three years — 12 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: $50,000 on 2025-05-30 (lender: Arbor Agency Lending, LLC). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2025-05-30 | Mortgage $50,000 — from 600 EAST 21ST STREET LLC to ARBOR AGENCY LENDING, LLC | $50,000 | |
| 2025-05-30 | Agreement $4,900,000 — from 600 EAST 21ST STREET LLC to ARBOR AGENCY LENDING, LLC | $4,900,000 | |
| 2018-04-27 | Agreement $4,850,000 — from 600 EAST 21ST STREET LLC to SOVEREIGN BANK; SOVEREIGN BANK, N.A.; SANTANDER BANK, N.A. | $4,850,000 | |
| 2018-04-27 | Mortgage $1,991,803 — from 600 EAST 21ST STREET LLC to SANTANDER BANK, N.A. | $1,991,803 | |
| 2011-08-25 | Agreement $3,200,000 — from 600 EAST 21ST STREET LLC to SOVEREIGN BANK | $3,200,000 | |
| 2011-08-25 | Mortgage $1,510,161 — from 600 EAST 21ST STREET LLC to SOVEREIGN BANK | $1,510,161 | |
| 2006-01-13 | Mortgage $324,881 — from 600 EAST 21ST STREET LLC C/O PROTO REALT to INDEPENDENCE COMMUNITY BANK | $324,881 | |
| 2006-01-13 | Agreement $1,850,000 — from 600 EAST 21ST STREET LLC C/O PROTO REALT to INDEPENDENCE COMMUNITY BANK | $1,850,000 | |
| 1999-07-19 | Mortgage $435,753 — from 600 EAST 21ST ST LLC to INDEPENDENCE COMMUNITY BANK | $435,753 | |
| 1995-08-07 | Mortgage $631,064 — from 600 EAST 21ST STREETLLC to COMMUNITY PRESERVATION CORP. | $631,064 | |
| 1995-08-07 | Mortgage $600,936 — from 600 EAST 21ST STREETLLC to COMMUNITY PRESERVATION CORP. | $600,936 | |
| 1994-07-20 | Mortgage $675,000 — from DITMAS GROUP ASSOCIATES INC to MEDREZ, JOSEPH; EPSTEIN, SARA; SUTTON, JOSEPH D; WIKLER, YOSEF; WAGNER, MENACHEM; GOTTLIEB | $675,000 | |
| 1990-11-08 | Mortgage $1,970,000 — from 600 E 21ST ST RLTY CO; 525 E 21ST ST RLTY CO to CITIBANK NA | $1,970,000 | |
| 1989-03-06 | Mortgage $499,900 — from KASSIS REALTY CO to GROSS, ELLIOT S; 600 E. 21 STREET RLTY CO; 525 E. 21 ST. REALTYCO | $499,900 | |
| 1986-02-06 | Mortgage $496,351 — from 600 REALTY ASSOCIATES to TROY SAVS BANK | $496,351 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 2 | 59 | 0 | 0 | 61 |
| 2018 | 0 | 7 | 58 | 2 | 1 | 68 |
| 2019 | 4 | 4 | 94 | 0 | 2 | 104 |
| 2020 | 0 | 0 | 45 | 0 | 2 | 47 |
| 2021 | 2 | 2 | 75 | 0 | 2 | 81 |
| 2022 | 0 | 3 | 97 | 0 | 1 | 101 |
| 2023 | 0 | 3 | 52 | 0 | 1 | 56 |
| 2024 | 0 | 0 | 121 | 0 | 4 | 125 |
| 2025 | 0 | 2 | 45 | 5 | 2 | 54 |
| 2026 | 0 | 4 | 55 | 0 | 0 | 59 |
Every one of the 1,716 recorded events, 1966–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11226 · Landlord rankings · How grades work · The map · The Mice Map