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21 West 106 Street

1,301Records
18City systems
104Open violations
226.6Penalty rate
Manhattan · ZIP 10025 · Neighborhood: Upper West Side-Manhattan Valley
Open in the map

1,301 recorded events, 1978–2026, from 18 city data systems. The city's paper trail here is mostly 495 HPD complaints, 285 311 service requests, 265 HPD housing violations.

BoroughManhattan 10025
Built1920
Floors5
Res. units20
ClassC4
Owner (PLUTO)21 WEST 106 PARTNERS, LLC
BBL1018420021
BIN1055653

Full record, year by year   Support this site

GRADE C

A meaningful record of code violations or complaints relative to its peers. More recorded distress than 92% 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 226.6. In ZIP 10025, 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 violations104 total — 11 class C (immediately hazardous), 69 class B, 24 class A. Oldest open since 2017-03-17.

status snapshot refreshed weekly from HPD records

Patterns

49 heat or hot-water complaints in the last three years (winter 2024–25: 39 · winter 2025–26: 4). Repeated winter clusters suggest a chronic heating problem.

39
’24–25
4
’25–26

No bedbug-infested units reported in the last three years of filings.

What 311 hears from this address

85 service requests in the last three years. Most common: HEAT/HOT WATER (22) · PAINT/PLASTER (11) · UNSANITARY CONDITION (9) · FLOORING/STAIRS (8) · Rodent (7) · PLUMBING (6).

Filed construction activity

$47,000 in permitted construction work filed since 2016 (3 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.

Rent-stabilization signals

YesBuilt before 1974 (1920)
YesSix or more residential units (20)
No421-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)21 WEST 106 PARTNERS, LLC
Head officerROBERT SLININ
Managing agentSKYLARK MANAGEMENT GROUP, INC.
Last registered2025-10-09

as filed by the owner in the building's HPD registration

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$3,386,000 $1,523,700
2026$3,450,000 $1,552,500
2027$3,333,000 $1,499,850

The city's market estimate has fallen 2% between tax years 2025 and 2027.

Building systems

Heating fuelNO2FUEL

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

SubwayCathedral Pkwy (110 St) — B C · 750 ft straight-line (about a 4-minute walk) · station accessibility: none
BusNearest boarding stop: Manhattan Av / W 106 St — M7 M116 · 100 ft
Citi BikeW 106 St & Central Park W · 250 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 165 Robert E. Simon. 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.

Report a problem to 311

21 West 106 Street

Heat or hot waterHeat or hot water
Apartment maintenanceApartment maintenance
Bed bugsBed bugs
Residential pestsResidential pests
Rats or miceRats or mice
Anything elseAnything else

85 311 service requests from this address in the last three years — 22 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.

The landlord's report card

Managed by SKYLARK MANAGEMENT GROUP, INC. — 8 buildings, 84 units. Grades across the portfolio: A2 · B4 · C1 · D1. See the whole portfolio

BuildingBoroughUnitsGrade
21 West 106 Street MN20 C
238 East 82 Street MN20 A
515 East 82 Street MN20 B
167 8 Avenue MN8 B
843 2 Avenue MN6 B
114 President Street BK4 A
624 East 9 Street MN3 B
163 8 Avenue MN3 D

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $44,032 on 2026-05-19 (lender: Provident Bank). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2026-05-19AL&R $3,250,000 — from 21 WEST 106 PARTNERS, LLC to PROVIDENT BANK $3,250,000
2026-05-19Agreement $3,250,000 — from 21 WEST 106 PARTNERS, LLC to PROVIDENT BANK $3,250,000
2026-05-19Mortgage $44,033 — from 21 WEST 106 PARTNERS, LLC to PROVIDENT BANK $44,033
2017-02-15Mortgage $5,515,000 — from 21 WEST 106 PARTNERS, LLC to ORITANI FINANCE COMPANY $5,515,000
2017-02-15CERR $5,515,000 — from 21 WEST 106 PARTNERS, LLC to ORITANI FINANCE COMPANY $5,515,000
2017-02-15Deed $9,400,000 — from COSO 21 WEST 106 LLC to 21 WEST 106 PARTNERS, LLC $9,400,000
2017-02-15AL&R $5,515,000 — from 21 WEST 106 PARTNERS, LLC to ORITANI FINANCE COMPANY $5,515,000
2017-01-31Sold for $9,400,000 $9,400,000 $470,000
2015-08-05AL&R $5,600,000 — from COSO 21 WEST 106 LLC to SIGNATURE BANK $5,600,000
2015-08-05Mortgage $1,914,960 — from COSO 21 WEST 106 LLC to SIGNATURE BANK $1,914,960
2015-08-05Agreement $5,600,000 — from COSO 21 WEST 106 LLC to SIGNATURE BANK $5,600,000
2014-07-09AL&R $800,000 — from COSO 21 WEST 106 LLC to SIGNATURE BANK $800,000
2014-07-09Mortgage $800,000 — from COSO 21 WEST 106 LLC to SIGNATURE BANK $800,000
2013-10-11Deed $4,350,000 — from DHNY APT II LLC to COSO 21 WEST 106 LLC $4,350,000
2013-10-11Agreement $2,900,000 — from COSO 21 WEST 106 LLC to SIGNATURE BANK $2,900,000

Ten-year activity

2001000
2017
2018
2019
2020
2021
2022
2023
182
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
20170412879148
201820620165
201901800283
202000110112
202100120113
20220111906126
20230090211
20240018002182
2025007501994
202600185326
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The full timeline

Construction 45Enforcement 20Housing & tenants 1,078Ownership & money 98Health & systems 60

Every one of the 1,301 recorded events, 1978–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 10025 · Landlord rankings · How grades work · The map · The Mice Map