875 recorded events, 1970–2026, from 21 city data systems. The city's paper trail here is mostly 271 311 service requests, 162 ACRIS deeds & mortgages, 125 DOB permits.
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 74% 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 4.8. 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 — 3 class C (immediately hazardous), 6 class B, 8 class A. Oldest open since 1993-12-03. |
status snapshot refreshed weekly from HPD records
4 heat or hot-water complaints in the last three years (winter 2024–25: 4).
No bedbug-infested units reported in the last three years of filings.
$625 in enforcement penalties imposed (ECB/OATH) in the last three years.
111 service requests in the last three years. Most common: Encampment (55) · Noise (10) · Homeless Person Assistance (8) · Dirty Condition (6) · Illegal Parking (5) · For Hire Vehicle Complaint (3).
$4,792,728 in permitted construction work filed since 2016 (61 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 (1938) |
| Yes | Six or more residential units (58) |
| 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) | Chelsea - Warren Corp. |
| Head officer | ANDREW KORMAN |
| Managing agent | AKAM ASSOCIATES, INC. |
| Last registered | 2025-10-31 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $11,933,000 | $5,369,850 |
| 2026 | $14,574,000 | $6,558,300 |
| 2027 | $14,277,000 | $6,424,650 |
The city's market estimate has risen 20% between tax years 2025 and 2027.
Tax exemptions on the roll: DISABLED HOMEOWNER · SENIOR CITIZEN HOMEOWNER
For property tax, the Department of Finance values this co-op as if it were a rental building. Its 2021 estimate: gross income $2,239,553 a year ($36.03 per sq ft), operating expenses $783,812 ($12.61 per sq ft), net operating income $1,455,740. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
| Energy grade (LL33) | B — ENERGY STAR score 75/100 (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | SWARMP — "Safe With A Repair and Maintenance Program": known facade conditions that must be repaired (cycle 9) |
| Restaurant | Cuisine | Grade | Notes |
|---|---|---|---|
| Blank Street Coffee | Coffee/Tea | A | Mice evidence |
Report to 311: Food poisoning · Food safety complaint
1 restaurant · 1 with mice evidence · See them on the Mice Map
2 Food Establishment complaints 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).
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 | 18 St — 1 · 550 ft straight-line (about a 3-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: 7 Av / W 20 St — M7 M20 · 250 ft |
| Citi Bike | W 20 St & 7 Ave · 200 ft · station location as of 2026-09-23; live availability |
| Bike facility | Painted bike lane mapped within 75 ft |
| 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.
171 7 Avenue
| 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 |
111 311 service requests from this address in the last three years — 2 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 AKAM ASSOCIATES, INC. — 372 buildings, 55,744 units. Grades across the portfolio: A328 · B33 · C5. See the whole portfolio
showing 60 of 372 buildings
Most recent mortgage recorded against this lot: $1,000,000 on 2021-10-14 (lender: National Consumer Cooperative Bank), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2026-06-24 | RPTT&RET $685,000 — from MICHAEL P. MULCAHY & KIMBERLY C.G. MULCA; MICHAEL P. MULCAHY, AS TRUSTEE; KIMBERLY C.G. MU to THE EMOND/FARYNIARZ 2003 REVOCABLE TRUST; DEBORAH ANN FARYNIARZ, AS TRUSTEE; STEP | $685,000 | |
| 2026-06-09 | Sold for $685,000 | $685,000 | $11,810 |
| 2026-05-21 | RPTT&RET $283,000 — from CHELSEA MADISON COMPANY to ALMIR RADONCIC AND NADIRA RADONCIC IRREV | $283,000 | |
| 2026-05-06 | Sold for $283,000 | $283,000 | $4,879 |
| 2026-01-21 | RPTT&RET $1,115,000 — from POULIOS, GEORGE to MULCAHY, MICHAEL PHILIP; MULCAHY, KIMBERLY CAMERA GARDNER | $1,115,000 | |
| 2026-01-13 | Sold for $1,115,000 | $1,115,000 | $19,224 |
| 2025-10-08 | RPTT&RET $710,000 — from JOE, TRACY KATZ; JOE, VINCENT to ELKINGTON, THOMAS | $710,000 | |
| 2025-10-03 | RPTT&RET $628,750 — from PETOSA, MARTIN F to NGUYEN, KIM LOAN; HUYNH, THANG ALEX; HUYNH, ANTHONY | $628,750 | |
| 2025-10-01 | Sold for $710,000 | $710,000 | $12,241 |
| 2025-09-26 | Sold for $628,750 | $628,750 | $10,841 |
| 2025-09-02 | RPTT&RET $1,850,000 — from GOSLING, GLENN; BERGLUND, MIA to TUNG, YEN-TING TONY; WU, I-YAO | $1,850,000 | |
| 2025-08-21 | Sold for $1,850,000 | $1,850,000 | $31,897 |
| 2024-06-05 | RPTT&RET $730,000 — from ROWE, ROBERT LEE II to MARCIANI, TODD | $730,000 | |
| 2024-06-03 | Sold for $730,000 | $730,000 | $12,586 |
| 2023-10-19 | RPTT&RET $675,000 — from D'AVIRRO, MARK A; LANGE, ROBERT J to JOE, VINCENT; KATZ JOE, TRACY | $675,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 22 | 3 | 4 | 4 | 3 | 36 |
| 2018 | 8 | 1 | 7 | 4 | 2 | 22 |
| 2019 | 13 | 1 | 8 | 14 | 4 | 40 |
| 2020 | 37 | 1 | 39 | 8 | 7 | 92 |
| 2021 | 18 | 6 | 48 | 22 | 3 | 97 |
| 2022 | 20 | 1 | 18 | 5 | 2 | 46 |
| 2023 | 8 | 0 | 13 | 7 | 2 | 30 |
| 2024 | 11 | 7 | 13 | 2 | 6 | 39 |
| 2025 | 7 | 2 | 87 | 6 | 2 | 104 |
| 2026 | 3 | 0 | 15 | 6 | 4 | 28 |
Every one of the 875 recorded events, 1970–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 10011 · Landlord rankings · How grades work · The map · The Mice Map