4,477 recorded events, 1900–2026, from 21 city data systems. The city's paper trail here is mostly 1,674 HPD housing violations, 1,591 HPD complaints, 840 311 service requests.
Full record, year by year Support this site
A meaningful record of code violations or complaints relative to its peers. More recorded distress than 89% 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 187.4. 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 | 99 total — 21 class C (immediately hazardous), 54 class B, 24 class A. Oldest open since 2006-03-06. |
status snapshot refreshed weekly from HPD records
21 heat or hot-water complaints in the last three years (winter 2025–26: 21).
No bedbug-infested units reported in the last three years of filings.
138 service requests in the last three years. Most common: UNSANITARY CONDITION (28) · DOOR/WINDOW (25) · PAINT/PLASTER (19) · HEAT/HOT WATER (10) · Illegal Parking (8) · GENERAL (6).
$561,400 in permitted construction work filed since 2016 (3 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 (1961) |
| Yes | Six or more residential units (64) |
| 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) | 580 E 21ST ST LLC |
| Head officer | DAVID BLAU |
| Managing agent | J.K MGMT CORP |
| Last registered | 2025-08-11 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $3,703,000 | $1,666,350 |
| 2026 | $3,797,000 | $1,708,650 |
| 2027 | $2,939,000 | $1,322,550 |
The city's market estimate has fallen 21% between tax years 2025 and 2027.
| Energy grade (LL33) | D — ENERGY STAR score 11/100, posted at the entrance by law (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | SAFE (cycle 9) |
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.
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 | Cortelyou Rd — Q · 0.3 mi straight-line (about an 8-minute walk) · station accessibility: none Newkirk Plaza — B Q · 0.4 mi straight-line (about an 11-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Flatbush Av / Avenue D — B41 · 750 ft |
| Citi Bike | Cortelyou Rd & E 19 St · 0.2 mi · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: 152, 315 Middle: M.S. 246 Walt Whitman. 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.
580 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 |
138 311 service requests from this address in the last three years — 10 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 J.K MGMT CORP — 2 buildings, 127 units. Grades across the portfolio: B1 · C1. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 580 East 21 Street | BK | 64 | C |
| 1347 51 Street | BK | 63 | B |
Most recent mortgage recorded against this lot: $748,304 on 2002-01-29 (lender: North Fork 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 |
|---|---|---|---|
| 2024-01-10 | ASPM $4,919,043 — from HF 580 EAST 21ST LLC; 580 E. 21ST LLC; JACOB KEMPLER FAMILY PARTNERSHIP, L.P. to SANTANDER BANK, N.A. | $4,919,043 | |
| 2020-04-27 | Agreement $5,300,000 — from 580 E. 21ST LLC to SANTANDER BANK, N.A. | $5,300,000 | |
| 2020-04-27 | Mortgage $824,930 — from 580 E. 21ST LLC to SANTANDER BANK, N.A. | $824,930 | |
| 2015-05-20 | AL&R $5,000,000 — from 580 E. 21ST LLC to CAPITAL ONE, NATIONAL ASSOCIATION | $5,000,000 | |
| 2015-05-20 | Agreement $5,000,000 — from 580 E. 21ST LLC to CAPITAL ONE, NATIONAL ASSOCIATION | $5,000,000 | |
| 2015-05-20 | Mortgage $1,026,567 — from 580 E. 21ST LLC to CAPITAL ONE, NATIONAL ASSOCIATION | $1,026,567 | |
| 2011-03-01 | AL&R $4,275,000 — from 580 E. 21ST LLC to CAPITAL ONE, N.A. | $4,275,000 | |
| 2011-03-01 | Agreement $4,275,000 — from 580 E. 21ST LLC to CAPITAL ONE, N.A. | $4,275,000 | |
| 2011-03-01 | Mortgage $1,761,697 — from 580 E. 21ST LLC to CAPITAL ONE, N.A. | $1,761,697 | |
| 2004-07-04 | Mortgage $731,155 — from 580 E. 21ST LLC to NORTH FORK BANK | $731,155 | |
| 2004-07-04 | Agreement $2,850,000 — from 580 E. 21ST LLC to NORTH FORK BANK | $2,850,000 | |
| 2002-01-29 | Mortgage $748,305 — from 580 E 21ST LLC to NORTH FORK BANK | $748,305 | |
| 1997-08-19 | Mortgage $628,010 — from FERRARI ASSOCIATES to LINCOLN SAVINGS BANKFSB | $628,010 | |
| 1997-08-19 | Mortgage $225,414 — from 580 E 21ST LLC to HOME FEDERAL SAVINGSBANK | $225,414 | |
| 1996-04-10 | Mortgage $94,674 — from FERRARI ASSOCIATES to DIME SAVINGS BANK OFNEW YORK | $94,674 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 7 | 366 | 0 | 3 | 376 |
| 2018 | 0 | 6 | 350 | 0 | 3 | 359 |
| 2019 | 0 | 3 | 241 | 0 | 3 | 247 |
| 2020 | 0 | 2 | 42 | 4 | 1 | 49 |
| 2021 | 4 | 3 | 56 | 0 | 1 | 64 |
| 2022 | 4 | 6 | 34 | 0 | 1 | 45 |
| 2023 | 1 | 2 | 93 | 1 | 3 | 100 |
| 2024 | 1 | 4 | 202 | 2 | 2 | 211 |
| 2025 | 0 | 2 | 57 | 0 | 1 | 60 |
| 2026 | 0 | 0 | 332 | 0 | 5 | 337 |
Every one of the 4,477 recorded events, 1900–2026, 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