The city's published records show little recorded distress here in the last three years. Less recorded distress than 83% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty
points per 10 units; this building carries 2. In ZIP 10024, 70% of residential buildings hold an A and
2% grade D or F.
How grades work
this building
A
B
C
Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more
Open with the city right now
Open HPD violations
5 total — 1 class C (immediately hazardous), 3 class B, 1 class A. Oldest open since 2014-08-15.
status snapshot refreshed weekly from HPD records
Patterns
2 heat or hot-water complaints in the last three years (winter 2023–24: 2).
No bedbug-infested units reported in the last three years of filings.
What 311 hears from this address
8 service requests in the last three years. Most common: Noise (3) · Illegal Parking (2) · HEAT/HOT WATER (1) · Sidewalk Condition (1) · Lead (1).
Filed construction activity
No permitted work with a declared cost filed in the last decade. Permit
costs cover filed construction work only — they do not capture routine maintenance or repairs done
without a permit.
Rent-stabilization signals
Yes
Built before 1974 (1892)
Yes
Six or more residential units (10)
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 with HPD — the names behind the building
Registered owner(s)
23 WEST 87TH LLC
Head officer
MAGDALENA KOSZ
Managing agent
A.J. CLARKE REAL ESTATE CORP
Last registered
2026-07-17
as filed by the owner in the building's HPD registration
What the city thinks it's worth
Tax year
City market value
Assessed value
2025
$4,284,000
$1,927,800
2026
$4,808,000
$2,163,600
2027
$4,044,000
$1,819,800
The city's market estimate has fallen
6% between tax years 2025 and 2027.
Building systems
Heating fuel
NO2FUEL
Flood exposure
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.
Getting around
Subway
86 St — B C · 300 ft straight-line (about a 1-minute walk) · station accessibility: none
Bus
Nearest boarding stop: W 86 St / Central Pk West — M86-SBS · 350 ft · Select Bus Service
Citi Bike
W 89 St & Columbus Ave · 600 ft · station location as of 2026-09-23; live availability
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.
8 311 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.
Most recent mortgage recorded against this lot: $1,000,000 on
2016-09-16 (lender: JPMorgan Chase Bank, N.A.). Face amount at recording — it may have since been paid
down, refinanced or satisfied. View the recorded
document.
Date
Record
Amount
Per res. unit
2016-09-16
Mortgage $1,000,000 — from 23 W 87 LLC to JPMORGAN CHASE BANK, N.A.
$1,000,000
Ten-year activity
50250
2017
2018
2019
2020
35
2021
2022
2023
2024
2025
2026
EnforcementHousing & tenantsHealth & systems
Show as table
Year
Enforcement
Housing & tenants
Health & systems
Total
2017
0
8
3
11
2018
0
9
3
12
2019
0
9
2
11
2020
0
6
1
7
2021
0
34
1
35
2022
0
24
4
28
2023
2
10
2
14
2024
0
2
4
6
2025
0
3
2
5
2026
0
3
2
5
This record is free. Keeping it free costs money. Servers, data pipelines, weekends. Pay what you want — a dollar helps.
2026-01-03311: Lead — Lead Kit Request (Residential) (L10)
2025
2025-12-15Bedbug filing: 0 infested units
2025-10-22Rodent inspection: Passed
2025-07-16Boiler inspection
2025-07-02Bedbug filing: 0 infested units
2025-06-04HPD class A: (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD
2023-11-03Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2023-09-28311: HEAT/HOT WATER — ENTIRE BUILDING
2023-09-28Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2023-08-02Rodent inspection: Passed
2023-04-19HPD class B: § 27-2050 ADM CODE PROVIDE A PIECE OF GARDEN HOSE 10 FEET IN LENGTH WITH FEMALE COUPLING AND A 10 QUART PAIL ON PREMISES TO TEST SPRINKLER S
2023-03-19ECB CLASS - 3 violation: WORK W/O PERMIT.OBSERVED WOOD FRAME STRUCTURE WITH ROOF TOP LOCATED ON REAR YARD OF PROPERTY APROX X 18 FT WIDE BY 16 FT LONG CONS$250
2023-03-18311: Real Time Enforcement — Work Without A Permit - Occupied Multiple Dwelling
2023-03-18DOB complaint, category ?
2022
2022-12-21Bedbug filing: 0 infested units
2022-11-20311: HEAT/HOT WATER — ENTIRE BUILDING
2022-11-20Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-11-18311: HEAT/HOT WATER — ENTIRE BUILDING
2022-11-18Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-05-27Rodent inspection: Passed
2022-05-01HPD class B: § 27-2005, 2007 ADM CODE FIRE EGRESS DEFECTIVE. MAKE STATIONARY THE IRON LADDER LEADING TO SCUTTLE OPENING IN ROOF AT PUBLIC HALL, 4th STORY
2022-05-01HPD class B: § 27-2050 ADM CODE SEAL IN OPEN POSITION THE O.S.Y. VALVE OF THE SPRINKLER SYSTEM IN ACCORDANCE WITH THE RULES AND REGULATIONS OF THIS DEPAR
2022-04-29311: HEAT/HOT WATER — ENTIRE BUILDING
2022-04-29311: HEAT/HOT WATER — ENTIRE BUILDING
2022-04-29Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-04-29Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-04-27Rodent inspection: Bait applied
2022-04-19Boiler inspection
2022-04-18Rodent inspection: Failed for Rat Activity
2022-04-06311: HEAT/HOT WATER — ENTIRE BUILDING
2022-04-06Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-21Bedbug filing: 0 infested units
2022-01-20311: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-20Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-17311: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-17311: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-17Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-17Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-10311: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-10311: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-10Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2022-01-10Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2021-08-09Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2021-08-02HPD class C: § 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO H
2021-08-02HPD class C: § 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR TO CELLER LOCKED AT BOILER ROOM
2021-08-02HPD class C: § 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 5F, 4th STORY, 1st APARTMENT FROM EAST
2021-07-30311: HEAT/HOT WATER — ENTIRE BUILDING
2021-07-30Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2021-07-04311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2021-06-25311: Noise — Noise: Construction Equipment (NC1)
2021-06-24311: Noise - Helicopter — Other
2021-06-20311: Noise - Helicopter — Other
2021-06-15311: Noise - Helicopter — Other
2021-06-11311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2021-06-09311: Noise - Helicopter — Other
2021-06-04311: Noise - Helicopter — Other
2021-05-31311: Noise - Helicopter — Other
2021-05-28311: Noise - Helicopter — Other
2021-05-16311: Illegal Parking — Blocked Hydrant
2021-04-13311: Illegal Parking — Blocked Hydrant
2021-03-09311: HEAT/HOT WATER — ENTIRE BUILDING
2021-03-09311: HEAT/HOT WATER — ENTIRE BUILDING
2021-03-09Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2021-03-09Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2020-01-14311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-01-09311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-01-01311: HEAT/HOT WATER — ENTIRE BUILDING
2020-01-01Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2019
2019-12-24311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2019-12-04Bedbug filing: 0 infested units
2019-11-12HPD class C: § 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 1F, 1st STORY, 1st APARTMENT FROM WEST
2019-11-11311: HEAT/HOT WATER — ENTIRE BUILDING
2019-11-11Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2019-08-09Boiler inspection — defects found
2019-04-19Rodent inspection: Passed
2019-02-08Bedbug filing: 0 infested units
2019-02-06311: GENERAL — BELL/BUZZER/INTERCOM
2019-02-06Tenant complaint: GENERAL — BELL/BUZZER/INTERCOM
2019-01-08Bedbug filing: 0 infested units
2018
2018-11-23311: HEAT/HOT WATER — ENTIRE BUILDING
2018-11-23Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2018-10-24311: HEAT/HOT WATER — ENTIRE BUILDING
2018-10-24Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2018-10-10Boiler inspection
2018-10-10HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2018-08-26311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2018-08-23Rodent inspection: Passed
2018-08-18311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2018-08-03Rodent inspection: Failed for Rat Activity
2016-10-26HPD class I: SECTION27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE ?27-2097 AND IS THER
2016-09-16Mortgage $1,000,000 — from 23 W 87 LLC to JPMORGAN CHASE BANK, N.A.$1,000,000
2016-04-20Rodent inspection: Passed
2016-04-07Rodent inspection: Failed for Other Reason
2014-10-09HPD class B: SECTION 27-2005, 2007 ADM CODE FIRE EGRESS DEFECTIVE. MAKE STATIONARY THE IRON LADDER LEADING TO SCUTTLE OPENING IN ROOF LOOSE AT FRONT AT P
2014-08-15HPD class B: SECTION 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE PRIVATE HALLWAY L
2014-08-15HPD class B: SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF BEDBUGS LOCATED AT APT 5R, 4th STORY, 1st APARTMENT FROM WEST AT NORTH
2014-08-15HPD class B: SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE LOCATED AT APT 5R, 4th STORY, 1st APARTMENT FROM WEST AT NORTH
2014-08-15HPD class C: § 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK AT THE CEILING IN THE PRIVATE HALLWAY LOCATED AT APT 5R, 4th STORY, 1st APARTMEN
2014-08-15HPD class A: SECTION 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE WALLS AND CEILING IN THE 1st ROO