407 recorded events, 1966–2026, from 17 city data systems. The city's paper trail here is mostly 120 311 service requests, 89 HPD complaints, 56 ACRIS deeds & mortgages.
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 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty points per 10 units; this building carries 25.6. In ZIP 10010, 74% of residential buildings hold an A and 5% grade D or F. How grades work
Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 1 total — 0 class C (immediately hazardous), 1 class B, 0 class A. Oldest open since 2019-02-12. |
status snapshot refreshed weekly from HPD records
16 heat or hot-water complaints in the last three years (winter 2024–25: 8 · winter 2025–26: 8). Repeated winter clusters suggest a chronic heating problem.
1 bedbug-infested unit(s) reported in filings over the last three years.
21 service requests in the last three years. Most common: HEAT/HOT WATER (8) · Noise (3) · PLUMBING (1) · APPLIANCE (1) · Illegal Parking (1) · Electrical (1).
$37,500 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 (1851) |
| Yes | Six or more residential units (18) |
| 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) | UNITED FLATIRON LLC |
| Head officer | MARK HAROUNIAN |
| Managing agent | UNITED FLATIRON LLC |
| Last registered | 2026-06-23 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $3,812,000 | $1,715,400 |
| 2026 | $4,247,000 | $1,911,150 |
| 2027 | $4,437,000 | $1,996,650 |
The city's market estimate has risen 16% between tax years 2025 and 2027.
| Heating fuel | NO2FUEL |
| Restaurant | Cuisine | Grade | Notes |
|---|---|---|---|
| Nana Thai Street | Thai | Grade Pending | Mice evidence |
Report to 311: Food poisoning · Food safety complaint
1 restaurant · 1 with mice evidence · See them on the Mice Map
1 Food Establishment complaint to 311 at this address in the last three years (most often: Rodents/Insects/Garbage) · complaints filed by the public; DOHMH investigates, outcomes aren't published.
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 | 23 St-Baruch College — 6 · 400 ft straight-line (about a 2-minute walk) · station accessibility: full 23 St — R W · 400 ft straight-line (about a 2-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Park Av South / E 21 St — M1 M2 M3 · 450 ft |
| Citi Bike | Broadway & E 21 St · 300 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: Sixth Avenue Elementary School Middle: J.H.S. 104 Simon Baruch. 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.
31 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 |
| Food poisoning | Food poisoning |
| Food safety complaint | Food safety complaint |
| Anything else | Anything else |
21 311 service requests from this address in the last three years — 8 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.
Most recent mortgage recorded against this lot: $3,600,000 on 2014-03-14 (lender: JPMorgan Chase Bank, N.A.). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2021-11-12 | Agreement $3,600,000 — from JPMORGAN CHASE BANK, NA to UNITED FLATIRON LLC | $3,600,000 | |
| 2018-09-12 | Agreement $3,600,000 — from JPMORGAN CHASE BANK, N.A. to UNITED FLATIRON LLC | $3,600,000 | |
| 2014-03-14 | Agreement $3,600,000 — from UNITED FLATIRON LLC to JPMORGAN CHASE BANK, N.A. | $3,600,000 | |
| 2014-03-14 | Mortgage $3,600,000 — from UNITED FLATIRON LLC to JPMORGAN CHASE BANK, N.A. | $3,600,000 | |
| 2014-03-14 | Mortgage $890,890 — from UNITED FLATIRON LLC to JPMORGAN CHASE BANK, N.A. | $890,890 | |
| 2013-01-30 | Deed $2,769,455 — from JAM REALTY NYC LLC to UNITED FLATIRON LLC | $2,769,455 | |
| 2010-11-19 | Agreement $2,866,015 — from THE DIME SAVINGS BANK OF WILLIAMSBURGH to JAM REALTY CO., | $2,866,015 | |
| 2005-11-16 | AL&R $3,100,000 — from THE DIME SAVINGS BANK OF WILLIAMSBURGH to JAM REALTY CO. | $3,100,000 | |
| 2005-11-16 | Mortgage $1,314,044 — from JAM REALTY CO. to THE DIME SAVINGS BANK OF WILLIAMSBURGH | $1,314,044 | |
| 2005-11-16 | Agreement $3,100,000 — from THE DIME SAVINGS BANK OF WILLIAMSBURGH to JAM REALTY CO. | $3,100,000 | |
| 2003-07-03 | AL&R $1,850,000 — from JAM REALTY CO. to ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA | $1,850,000 | |
| 2003-07-03 | M&CON $1,047,229 — from JAM REALTY CO. to ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA | $1,047,229 | |
| 1998-02-02 | Mortgage $377,528 — from JAM REALTY CO. to ASTORIA FEDERAL SAVINGS & LOAN ASSOCIATI | $377,528 | |
| 1987-02-04 | Mortgage $129,052 — from FIRST MANHATTAN RLTYASC to CROSSLAND SAVINGS FSB | $129,052 | |
| 1987-02-04 | Mortgage $82,954 — from JAM REALTY CO to FIRST NATIONWIDE SAVINGS | $82,954 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 10 | 4 | 22 | 0 | 2 | 38 |
| 2018 | 0 | 0 | 28 | 1 | 0 | 29 |
| 2019 | 0 | 0 | 30 | 0 | 2 | 32 |
| 2020 | 0 | 1 | 5 | 0 | 1 | 7 |
| 2021 | 0 | 0 | 4 | 1 | 1 | 6 |
| 2022 | 0 | 3 | 23 | 0 | 1 | 27 |
| 2023 | 0 | 3 | 11 | 0 | 3 | 17 |
| 2024 | 0 | 2 | 15 | 0 | 3 | 20 |
| 2025 | 0 | 0 | 19 | 0 | 5 | 24 |
| 2026 | 0 | 0 | 6 | 0 | 7 | 13 |
Every one of the 407 recorded events, 1966–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 10010 · Landlord rankings · How grades work · The map · The Mice Map