1,203 recorded events, 1976–2026, from 22 city data systems. The city's paper trail here is mostly 408 311 service requests, 200 DOB permits, 143 ACRIS deeds & mortgages.
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 60% of 100+-unit residential buildings citywide. The citywide median for 100+-unit residential buildings is 3.7 penalty points per 10 units; this building carries 2.2. In ZIP 10023, 77% of residential buildings hold an A and 3% grade D or F. How grades work
Among 4,677 100+-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 8 total — 1 class C (immediately hazardous), 0 class B, 7 class A. Oldest open since 2024-10-03. |
status snapshot refreshed weekly from HPD records
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.
$3,750 in enforcement penalties imposed (ECB/OATH) in the last three years.
83 service requests in the last three years. Most common: Noise (21) · Illegal Parking (14) · UNSANITARY CONDITION (7) · Water System (4) · Lead (3) · Indoor Air Quality (3).
$1,416,280 in permitted construction work filed since 2016 (14 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.
| No | Built before 1974 (2016) |
| Yes | Six or more residential units (236) |
| Yes | 421-a / J-51 tax benefit on the current tax roll |
2 of 3 signals present. Buildings receiving 421-a or J-51 benefits are generally required to register their units as rent-stabilized for the duration of the benefit. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).
| Registered owner(s) | ACP AMSTERDAM I, LLC |
| Head officer | WAYNE NGAI |
| Managing agent | EQUITY RESIDENTIAL MANAGEMENT, LLC |
| Last registered | 2025-09-25 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $87,964,000 | $39,583,800 |
| 2026 | $88,261,000 | $39,717,450 |
| 2027 | $86,905,000 | $39,107,250 |
The city's market estimate has fallen 1% between tax years 2025 and 2027.
Tax exemptions on the roll: 421A 10 YR CAP
| Energy grade (LL33) | C — ENERGY STAR score 69/100 (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 |
|---|---|---|---|
| Sushi Lin | Japanese | Not yet graded | — |
Report to 311: Food poisoning · Food safety complaint
1 restaurant · 0 with mice evidence · See them on the Mice Map
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 | 66 St-Lincoln Center — 1 · 900 ft straight-line (about a 4-minute walk) · station accessibility: full 72 St — 1 2 3 · 1,050 ft straight-line (about a 5-minute walk) · station accessibility: full |
| Bus | Nearest boarding stop: Amsterdam Av / W 67 St — M11 · 150 ft |
| Citi Bike | W 67 St & Broadway · 550 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 452. 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.
170 Amsterdam 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 |
83 311 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 EQUITY RESIDENTIAL MANAGEMENT, LLC — 24 buildings, 4,949 units. Grades across the portfolio: A18 · B6. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 180 Riverside Boulevard | MN | 516 | A |
| 111 Lawrence Street | BK | 492 | B |
| 240 East 27 Street | MN | 325 | A |
| 777 Avenue of the Americas | MN | 294 | A |
| 831 8 Avenue | MN | 293 | A |
| 747 2 Avenue | MN | 269 | A |
| 303 East 83 Street | MN | 261 | A |
| 400 West 37 Street | MN | 259 | A |
| 71 Broadway | MN | 237 | B |
| 170 Amsterdam Avenue | MN | 236 | A |
| 750 Columbus Avenue | MN | 207 | B |
| 180 Montague Street | BK | 193 | A |
| 228 West 71 Street | MN | 169 | A |
| 41 West 86 Street | MN | 166 | A |
| 815 10 Avenue | MN | 164 | A |
| 720 Columbus Avenue | MN | 163 | B |
| 50 West 77 Street | MN | 137 | B |
| 600 Washington Street | MN | 136 | A |
| 53 North 3 Street | BK | 113 | A |
| 500 West 23 Street | MN | 111 | A |
| 431 West 37 Street | MN | 98 | A |
| 508 West 55 Street | MN | 58 | A |
| 261 North 9 Street | BK | 42 | A |
| 238 West 71 Street | MN | 10 | B |
Most recent mortgage recorded against this lot: $39,950,000 on 2010-01-12 (lender: Kbc Bank, N.v). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2026-09-22 | RPTT $2,126,354,644 — from EQUITY RESIDENTIAL (OBO PUBLIC SHAREHOLD to AVALONBAY COMMUNITIES, INC. (OBO PUBLIC | $2,126,354,644 | |
| 2020-03-13 | Agreement $38,000,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V. | $38,000,000 | |
| 2015-07-06 | RPTT&RET $2,545,590 — from WOLF, PAMELA to NYKC SUBSIDIARY HOLDINGS. LLC; NYKC HOLDINGS, LLC | $2,545,590 | |
| 2011-11-21 | Agreement $39,950,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V. | $39,950,000 | |
| 2011-11-21 | Agreement $39,950,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V. | $39,950,000 | |
| 2011-09-21 | Agreement $39,950,000 — from ACP AMSTERDAM 1, LLC to KBC BANK, N.V. | $39,950,000 | |
| 2011-09-21 | AL&R $39,950,000 — from ACP AMSTERDAM 1, LLC to KBC BANK, N.V. | $39,950,000 | |
| 2011-09-21 | MLEA $76,500,000 — from ACP AMSTERDAM I, LLC to LAWRENCE DOWNTOWN HOLDINGS, LLC | $76,500,000 | |
| 2010-11-04 | Agreement $39,950,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V. | $39,950,000 | |
| 2010-11-04 | AL&R $39,950,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V. | $39,950,000 | |
| 2010-01-12 | Agreement $47,000,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V. | $47,000,000 | |
| 2010-01-12 | AL&R $39,950,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V | $39,950,000 | |
| 2010-01-12 | Mortgage $39,950,000 — from ACP AMSTERDAM I, LLC to KBC BANK, N.V | $39,950,000 | |
| 2009-11-09 | Agreement $47,000,000 — from ACP AMSTERDAM 1, LLC to KBC BANK, N.V. | $47,000,000 | |
| 2009-11-09 | AL&R $47,000,000 — from ACP AMSTERDAM 1, LLC to KBC BANK, N.V. | $47,000,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 3 | 5 | 10 | 0 | 16 | 34 |
| 2018 | 2 | 4 | 16 | 0 | 11 | 33 |
| 2019 | 0 | 8 | 43 | 0 | 8 | 59 |
| 2020 | 8 | 9 | 58 | 1 | 5 | 81 |
| 2021 | 4 | 9 | 70 | 0 | 4 | 87 |
| 2022 | 8 | 3 | 18 | 0 | 6 | 35 |
| 2023 | 5 | 3 | 13 | 0 | 7 | 28 |
| 2024 | 6 | 5 | 81 | 0 | 8 | 100 |
| 2025 | 0 | 2 | 16 | 0 | 5 | 23 |
| 2026 | 0 | 0 | 19 | 1 | 6 | 26 |
Every one of the 1,203 recorded events, 1976–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 10023 · Landlord rankings · How grades work · The map · The Mice Map