622 recorded events, 1900–2026, from 18 city data systems. The city's paper trail here is mostly 147 311 service requests, 130 ACRIS deeds & mortgages, 87 HPD complaints.
Full record, year by year Support this site
The city's published records show little recorded distress here in the last three years. Less recorded distress than 69% 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 7.1. In ZIP 10011, 68% of residential buildings hold an A and 5% 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 | 17 total — 1 class C (immediately hazardous), 13 class B, 3 class A. Oldest open since 1985-05-21. |
status snapshot refreshed weekly from HPD records
20 heat or hot-water complaints in the last three years (winter 2023–24: 4 · winter 2024–25: 2 · winter 2025–26: 14). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
35 service requests in the last three years. Most common: Homeless Person Assistance (13) · HEAT/HOT WATER (10) · Noise (4) · WATER LEAK (2) · Street Condition (2) · Dead/Dying Tree (1).
$1,050,529 in permitted construction work filed since 2016 (16 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 (1913) |
| Yes | Six or more residential units (35) |
| 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) | 234 W 21ST ST OWNERS CORP |
| Head officer | CAL AUSTIN |
| Managing agent | ABC REALTY |
| Last registered | 2025-08-13 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $8,163,000 | $3,673,350 |
| 2026 | $8,500,000 | $3,825,000 |
| 2027 | $8,715,000 | $3,921,750 |
The city's market estimate has risen 7% between tax years 2025 and 2027.
For property tax, the Department of Finance values this co-op as if it were a rental building. Its 2022 estimate: gross income $1,471,001 a year ($44.96 per sq ft), operating expenses $564,386 ($17.25 per sq ft), net operating income $906,616. 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 86/100 (2022 disclosure cycle) |
| Heating fuel | NO2FUEL |
| 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.
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 — C E · 700 ft straight-line (about a 3-minute walk) · station accessibility: none 23 St — 1 · 700 ft straight-line (about a 3-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: 8 Av / W 20 St — M20 · 400 ft |
| Citi Bike | W 20 St & 7 Ave · 400 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 011: The Sarah J. Garnet Elementary School Middle: M.S. 297. 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.
234 West 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 |
35 311 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 ABC REALTY — 64 buildings, 1,462 units. Grades across the portfolio: A49 · B7 · C5. See the whole portfolio
showing 60 of 64 buildings
Most recent mortgage recorded against this lot: $250,000 on 2016-10-19 (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 |
|---|---|---|---|
| 2026-07-06 | RPTT&RET $1,395,000 — from MOESSNER, NICOLAS to KILLIAN, KRYSTAL MARIE; KILLIAN, JASON PETER | $1,395,000 | |
| 2026-06-25 | Sold for $1,395,000 | $1,395,000 | $39,857 |
| 2025-05-05 | RPTT&RET $990,000 — from POITRA, PATRICIA D; FITZPATRICK, DENNIS T to WADIAK, WALTER P; MYDLARZ, JAKUB M | $990,000 | |
| 2025-04-30 | Sold for $990,000 | $990,000 | $28,286 |
| 2024-09-16 | RPTT&RET $1,200,000 — from SCHORSCH, DEBORAH to DIAMANTOPOULOU, IVI; MIGNANELLI, ADAM | $1,200,000 | |
| 2024-09-11 | Sold for $1,200,000 | $1,200,000 | $34,286 |
| 2024-09-03 | RPTT&RET $736,000 — from CHELSEA UNITS 21ST STREET LLC to SHWED, DANIELLE | $736,000 | |
| 2024-08-20 | RPTT&RET $1,100,000 — from COOPER, DAVID L; SUDOCK COOPER, DEBRA to LIU, ANDREW HUAMING | $1,100,000 | |
| 2024-08-20 | Sold for $736,000 | $736,000 | $21,029 |
| 2024-08-14 | Sold for $1,100,000 | $1,100,000 | $31,429 |
| 2024-04-12 | RPTT&RET $1,365,000 — from LIEM, BRIAN; GWOSDOF, ADAM to WATKINS, MARK T JR; MISQUITTA, TANIA | $1,365,000 | |
| 2024-04-04 | Sold for $1,365,000 | $1,365,000 | $39,000 |
| 2023-11-15 | RPTT&RET $980,000 — from CHELSEA UNITS 21ST STREET LLC to SOTO, JILBERTO; MEZAN, ROBERT | $980,000 | |
| 2023-10-31 | RPTT&RET $700,000 — from GOLDSTEIN, JESS; POWERS, KIM to AHMED, MUNAWAR | $700,000 | |
| 2023-10-25 | Sold for $980,000 | $980,000 | $28,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 3 | 5 | 4 | 3 | 15 |
| 2018 | 0 | 1 | 2 | 4 | 3 | 10 |
| 2019 | 7 | 0 | 3 | 6 | 3 | 19 |
| 2020 | 0 | 0 | 17 | 0 | 2 | 19 |
| 2021 | 0 | 1 | 36 | 4 | 2 | 43 |
| 2022 | 5 | 1 | 48 | 6 | 3 | 63 |
| 2023 | 5 | 0 | 37 | 3 | 3 | 48 |
| 2024 | 7 | 2 | 21 | 8 | 3 | 41 |
| 2025 | 8 | 0 | 13 | 2 | 2 | 25 |
| 2026 | 2 | 0 | 15 | 2 | 4 | 23 |
Every one of the 622 recorded events, 1900–2026, is laid out year by year in the full report (print-ready).
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