451 recorded events, 1900–2026, from 18 city data systems. The city's paper trail here is mostly 115 DOB permits, 86 ACRIS deeds & mortgages, 66 DOB job filings.
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 90% 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 0.8. In ZIP 10024, 70% of residential buildings hold an A and 2% grade D or F. How grades work
Among 17,252 25-99-unit residential buildings citywide · left is less recorded distress, right is more
No current HPD flags in the latest weekly snapshot: no open violations, no pending litigation, no active vacate orders, and not in the Alternative Enforcement Program.
2 heat or hot-water complaints in the last three years (winter 2025–26: 2).
No bedbug-infested units reported in the last three years of filings.
7 service requests in the last three years. Most common: Illegal Parking (2) · Noise (1) · HEAT/HOT WATER (1) · Lead (1) · Missed Collection (1) · Elevator (1).
$4,877,507 in permitted construction work filed since 2016 (31 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 (1908) |
| Yes | Six or more residential units (36) |
| 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) | HAYDEN OWNERS CORP |
| Head officer | MARK HOFFMAN |
| Managing agent | HOFFMAN MANAGEMENT |
| Last registered | 2025-07-28 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $9,490,000 | $4,270,500 |
| 2026 | $10,130,000 | $4,558,500 |
| 2027 | $10,767,000 | $4,845,150 |
The city's market estimate has risen 13% 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 2021 estimate: gross income $1,542,498 a year ($33.47 per sq ft), operating expenses $462,703 ($10.04 per sq ft), net operating income $1,079,795. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
| Energy grade (LL33) | D — ENERGY STAR score 35/100, 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).
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 | 81 St-Museum of Natural History — B C · 250 ft straight-line (about a 1-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: W 81 St / Central Park West — M79-SBS · 200 ft · Select Bus Service |
| Citi Bike | W 82 St & Central Park W · 300 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 009 Sarah Anderson. 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.
11 West 81 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 |
7 311 service requests from this address in the last three years — 1 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 HOFFMAN MANAGEMENT — 69 buildings, 3,893 units. Grades across the portfolio: A64 · B4 · D1. See the whole portfolio
showing 60 of 69 buildings
Most recent mortgage recorded against this lot: $1,190,000 on 2021-07-07 (lender: Apple Bank For Savings). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2026-09-18 | RPTT&RET $1,250,000 — from KOH, S. MICHAEL; KOH, COLLEEN to DOLMATOVICH, ANNA; DOLMATOVICH, NAKAMA | $1,250,000 | |
| 2026-06-22 | RPTT&RET $650,000 — from COHEN, YING CHUN to HAYDEN OWNERS CORPORATION | $650,000 | |
| 2026-06-17 | RPTT&RET $987,500 — from HANSON, VIRGINIA; HANSON, GRANT to DESMOND, MICHAEL J; DESMOND, KRISTEN W | $987,500 | |
| 2026-06-11 | Sold for $987,500 | $987,500 | $27,431 |
| 2026-06-08 | Sold for $1,250,000 | $1,250,000 | $34,722 |
| 2026-05-13 | Sold for $650,000 | $650,000 | $18,056 |
| 2025-12-11 | RPTT&RET $3,350,000 — from BELLER, SUSAN; BELLER, MICHAEL to ARORA, SILKY; SIVAKUMAR, VISWANATH | $3,350,000 | |
| 2025-11-26 | Sold for $3,350,000 | $3,350,000 | $93,056 |
| 2025-11-07 | RPTT&RET $2,300,000 — from TEISMANN, CHRISTIAN to MCDANIEL, CAROLYN; KOTLIKOFF, MICHAEL | $2,300,000 | |
| 2025-10-28 | Sold for $2,300,000 | $2,300,000 | $63,889 |
| 2025-02-14 | RPTT&RET $2,225,000 — from SEGAL, MONICA M; SEGAL, RICHARD D to KORNACKI, BENJAMIN LOEB; KORNACKI, NICOLE ELIZABETH | $2,225,000 | |
| 2025-02-06 | Sold for $2,225,000 | $2,225,000 | $61,806 |
| 2024-11-26 | RPTT&RET $640,000 — from ANTHOINE, MARGARITA M to GOTTEHRER, RICHARD; GOTTEHRER, ANITA BOURNE | $640,000 | |
| 2024-11-19 | Sold for $640,000 | $640,000 | $17,778 |
| 2021-07-21 | RPTT&RET $862,000 — from ZARAK, TANIA to MAZUREK, DANIELLE; MAZUREK, PAWEL | $862,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 3 | 1 | 3 | 9 | 2 | 18 |
| 2018 | 3 | 2 | 1 | 4 | 3 | 13 |
| 2019 | 5 | 3 | 11 | 2 | 4 | 25 |
| 2020 | 14 | 1 | 17 | 0 | 1 | 33 |
| 2021 | 7 | 1 | 6 | 9 | 1 | 24 |
| 2022 | 9 | 2 | 4 | 0 | 11 | 26 |
| 2023 | 9 | 1 | 3 | 0 | 3 | 16 |
| 2024 | 10 | 1 | 3 | 4 | 3 | 21 |
| 2025 | 2 | 0 | 4 | 6 | 2 | 14 |
| 2026 | 16 | 1 | 3 | 6 | 2 | 28 |
Every one of the 451 recorded events, 1900–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 10024 · Landlord rankings · How grades work · The map · The Mice Map