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439 West 21 Street

199Records
15City systems
1Open violations
20Penalty rate
Manhattan · ZIP 10011 · Neighborhood: Chelsea-Hudson Yards
Open in the map

199 recorded events, 1968–2026, from 15 city data systems. The city's paper trail here is mostly 62 ACRIS deeds & mortgages, 24 311 service requests, 20 DOB permits.

BoroughManhattan 10011
Built1853
Floors4
Res. units8
ClassC1
Owner (PLUTO)HIGH LINE 21 CORPORATION
BBL1007190019
BIN1012625

Full record, year by year   Support this site

GRADE A

The city's published records show little recorded distress here in the last three years. More recorded distress than 54% 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 20. In ZIP 10011, 68% of residential buildings hold an A and 5% 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 violations1 total — 0 class C (immediately hazardous), 0 class B, 1 class A. Oldest open since 2026-04-29.

status snapshot refreshed weekly from HPD records

Patterns

No heat or hot-water complaints in the last three years.

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

$250 in enforcement penalties imposed (ECB/OATH) in the last three years.

What 311 hears from this address

1 service requests in the last three years. Most common: Boilers (1).

Filed construction activity

$185,200 in permitted construction work filed since 2016 (4 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 (1853)
YesSix or more residential units (8)
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)High Line 21 Corp
Head officerMarco Ferrari
Managing agentUBIQ NY LTD
Last registered2026-02-17

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$2,551,000 $1,147,950
2026$2,721,000 $1,224,450
2027$2,177,000 $979,650

The city's market estimate has fallen 15% between tax years 2025 and 2027.

Building systems

Heating fuelNATURALGAS

Flood exposure

Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).

Hurricane evacuation zone 2 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.

Getting around

Subway23 St — C E · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none
14 St — A C E L · 0.3 mi straight-line (about a 9-minute walk) · station accessibility: full
BusNearest boarding stop: 10 Av / W 21 St — M11 · 400 ft
Citi BikeW 22 St & 10 Ave · 400 ft · station location as of 2026-09-23; live availability
Bike facilityPainted 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.

Report a problem to 311

439 West 21 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

1 311 service request 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.

The landlord's report card

Managed by UBIQ NY LTD — 3 buildings, 37 units. Grades across the portfolio: A2 · B1. See the whole portfolio

BuildingBoroughUnitsGrade
1403 2 Avenue MN16 B
323 East 90 Street MN13 A
439 West 21 Street MN8 A

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $2,326,875 on 2026-09-10 (recorded via MERS, the industry registry; the lender is not named on the record). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2026-09-10Deed $5,600,000 — from HIGH LIINE 21 CORPORATION to R. JAMES ACHESON, TRUSTEE; JAMES AND JOANNE ACHESON FAMILY TRUST (T; JOANNE COLONNA ACHESO $5,600,000
2026-09-10Mortgage $2,326,875 — from R. JAMES ACHESON, TRUSTEE; JAMES AND JOANNE ACHESON FAMILY TRUST (T; JOANNE COLONNA ACHESO to MERS $2,326,875
2026-08-28Sold for $5,600,000 $5,600,000 $700,000
2017-09-27AL&R $1,300,000 — from HIGH LINE 21 CORPORATION to DIME COMMUNITY BANK; THE DIME SAVINGS BANK OF WILLIAMSBURGH $1,300,000
2017-09-27Agreement $1,300,000 — from HIGH LINE 21 CORPORATION to THE DIME SAVINGS BANK OF WILLIAMSBURGH; DIME COMMUNITY BANK $1,300,000
2017-09-27Mortgage $245,707 — from HIGH LINE 21 CORPORATION to DIME COMMUNITY BANK; THE DIME SAVINGS BANK OF WILLIAMSBURGH $245,707
2017-09-27Deed $5,720,000 — from CHOUKROUN ASSEST MANAGEMENT TRUST; YAEL CHOUKROUN to HIGH LINE 21 CORPORATION $5,720,000
2017-09-15Sold for $5,720,000 $5,720,000 $715,000
2014-07-24AL&R $1,130,000 — from THE CHOUKROUN ASSET MANAGEMENT TRUST; CHOUKROUN, AS TRUSTEE, YAEL to THE DIME SAVINGS BANK OF WILLIAMSBURGH $1,130,000
2014-07-24Agreement $1,130,000 — from THE CHOUKROUN ASSET MANAGEMENT TRUST; CHOUKROUN, AS TRUSTEE, YAEL to THE DIME SAVINGS BANK OF WILLIAMSBURGH $1,130,000
2014-07-24Mortgage $279,566 — from THE CHOUKROUN ASSET MANAGEMENT TRUST to THE DIME SAVINGS BANK OF WILLIAMSBURGH $279,566
2005-03-18DEEDO $1,875,000 — from GUTTMAN, GARY to TAVOR, ESTHER; CHOUKROUN, YAEL $1,875,000
2005-03-18Agreement $1,100,000 — from FIRST CENTRAL SAVINGS BANK to CHOUKROUN, YAEL; TAVOR, ESTHER $1,100,000
2005-03-18Mortgage $586,580 — from TAVOR, ESTHER; CHOUKROUN, YAEL to FIRST CENTRAL SAVINGS BANK $586,580
2003-08-14Mortgage $292,611 — from GUTTMAN, GARY to INDEPENDENCE COMMUNITY BANK $292,611

Ten-year activity

20100
20
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
20170286420
2018005027
2019001023
2020501006
2021107019
2022002002
2023034007
2024033017
2025022026
20262015210
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The full timeline

Construction 36Enforcement 35Housing & tenants 47Ownership & money 64Health & systems 17

Every one of the 199 recorded events, 1968–2026, is laid out year by year in the full report (print-ready).

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