779 recorded events, 1978–2026, from 19 city data systems. The city's paper trail here is mostly 259 311 service requests, 143 DOB permits, 127 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 80% 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 0.7. In ZIP 10011, 68% of residential buildings hold an A and 5% 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 | 7 total — 0 class C (immediately hazardous), 5 class B, 2 class A. Oldest open since 2015-09-14. |
status snapshot refreshed weekly from HPD records
No heat or hot-water complaints in the last three years.
No bedbug-infested units reported in the last three years of filings.
31 service requests in the last three years. Most common: Noise (11) · Consumer Complaint (2) · Smoking or Vaping (2) · Sewer Maintenance (2) · Illegal Dumping (2) · PAINT/PLASTER (2).
$2,544,151 in permitted construction work filed since 2016 (37 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 (2001) |
| Yes | Six or more residential units (313) |
| 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) | 23RD CHELSEA ASSOCIATES LLC |
| Head officer | CHRISTOPHER SCHMIDT |
| Managing agent | RELATED MANAGEMENT COMPANY,, L.P. |
| Last registered | 2025-08-20 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $102,938,000 | $46,322,100 |
| 2026 | $104,200,000 | $46,890,000 |
| 2027 | $101,608,000 | $45,723,600 |
The city's market estimate has fallen 1% between tax years 2025 and 2027.
Tax exemptions on the roll: 421A 20 YR PLUS 15 YR EXT
| Energy grade (LL33) | D — ENERGY STAR score 33/100, posted at the entrance by law (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 10) |
| Restaurant | Cuisine | Grade | Notes |
|---|---|---|---|
| Cafe BY the Girls | 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
In the FEMA 1%-annual-chance floodplain (2015 preliminary flood maps) — lenders typically require flood insurance here.
Hurricane evacuation zone 1 of 6 — zone 1 evacuates first.
Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.
7 street-flooding or sewer-backup complaints at this address since 2015 (0 in the last three years).
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 · 0.4 mi straight-line (about an 11-minute walk) · station accessibility: none 34 St-Hudson Yards — 7 · 0.5 mi straight-line (about a 13-minute walk) · station accessibility: full |
| Bus | Nearest boarding stop: W 23 St / 10 Av — M23-SBS · 350 ft · Select Bus Service |
| Citi Bike | W 22 St & 10 Ave · 650 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 033 Chelsea Prep 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.
527 West 23 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 |
31 311 service requests from this address in the last three years.
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 RELATED MANAGEMENT — 79 buildings, 14,302 units. Grades across the portfolio: A63 · B12 · C2. See the whole portfolio
showing 60 of 79 buildings
Most recent mortgage recorded against this lot: $12,000,000 on 2013-09-27 (lender: Wells Fargo Bank, National Association), 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 |
|---|---|---|---|
| 2013-09-27 | Mortgage $12,000,000 — from 23RD CHELSEA ASSOCIATES, L.L.C. to WELLS FARGO BANK, NATIONAL ASSOCIATION | $12,000,000 | |
| 2004-05-25 | Mortgage $107,000,000 — from 23RD CHELSEA ASSOCIATES, L.L.C. to FANNIE MAE | $107,000,000 | |
| 2004-05-25 | Mortgage $107,000,000 — from 23RD CHELSEA ASSOCIATES, L.L.C. to NEW YORK STATE HOUSING FINANCE AGENCY | $107,000,000 | |
| 2001-06-19 | Mortgage $110,000 — from 23RD CHELSEA ASSOCIATES, L.L.C. to NEW YORK STATE HOUSING FINANCE AGENCY | $110,000 | |
| 2001-06-19 | Mortgage $33,000,000 — from 23RD CHELSEA ASSOCIATES, L.L.C. to NEW YORK STATE HOUSING FINANCE AGENCY | $33,000,000 | |
| 2001-06-19 | Mortgage $1,400,725 — from EVOD ACQUISITION L.L.C.; 23RD CHELSEA ASSOCAITES, L.L.C. to BAYERISCHE HYPO-UNDVEREINSBANK AG | $1,400,725 | |
| 2001-06-19 | Mortgage $18,378,930 — from EVOD ACQUISITION L.L.C.; 23RD CHELSEA ASSOCIATES, L.L.C. to BAYERISCHE HYPO-UNDVEREINSBANK AG | $18,378,930 | |
| 1988-06-21 | Mortgage $188,534 — from CMRC LTD; CMRC CORP FKA to EMIGRANT SVGS BK | $188,534 | |
| 1983-05-04 | Agreement $268,873 — from CMRC LTD.; CMRC CORP. FKA to EMIGRANT SAVINGS BANK | $268,873 | |
| 1983-05-04 | Mortgage $268,873 — from CMRC LTD.; CMRC CORP. FKA to EMIGRANT SAVINGS BANK | $268,873 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 5 | 6 | 32 | 1 | 3 | 47 |
| 2018 | 0 | 9 | 32 | 0 | 4 | 45 |
| 2019 | 14 | 9 | 15 | 0 | 3 | 41 |
| 2020 | 0 | 0 | 14 | 0 | 3 | 17 |
| 2021 | 6 | 3 | 23 | 0 | 2 | 34 |
| 2022 | 3 | 0 | 17 | 1 | 2 | 23 |
| 2023 | 0 | 3 | 15 | 1 | 2 | 21 |
| 2024 | 9 | 1 | 9 | 1 | 5 | 25 |
| 2025 | 22 | 0 | 10 | 0 | 5 | 37 |
| 2026 | 22 | 3 | 23 | 0 | 5 | 53 |
Every one of the 779 recorded events, 1978–2026, 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