The city's published records show little recorded distress here in the last three years. Less recorded distress than 75% 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 5. 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
No current HPD flags in the latest weekly snapshot: no open violations, no
pending litigation, no active vacate orders, and not in the Alternative Enforcement Program.
Patterns
No heat or hot-water complaints in the last three years.
No bedbug-infested units reported in the last three years of filings.
What 311 hears from this address
5 service requests in the last three years. Most common: Missed Collection (2) · Abandoned Vehicle (1) · Noise (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 (1889)
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)
510 WEST END AVENUE ASSOCIATES LLC
Head officer
BARBARA SACKMAN
Managing agent
SACKMAN ENTERPRISES
Last registered
2025-10-23
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
$3,248,000
$1,461,600
2026
$3,898,000
$1,754,100
2027
$3,715,000
$1,671,750
The city's market estimate has risen
14% between tax years 2025 and 2027.
Building systems
Heating fuel
NATURALGAS
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 — 1 · 450 ft straight-line (about a 2-minute walk) · station accessibility: none
Bus
Nearest boarding stop: Broadway / W 84 St — M104 · 350 ft
Citi Bike
W 84 St & Broadway · 500 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.
5 311 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.
Most recent mortgage recorded against this lot: $2,240 on
2024-05-07 (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
2024-05-07
Mortgage $2,240 — from A & W 510, LLC; WAS 510, LLC; MAWEA, LLC to JPMORGAN CHASE BANK, N.A.
$2,240
2024-05-07
Agreement $2,700,000 — from MAWEA, LLC; WAS 510, LLC; A & W 510, LLC to JPMORGAN CHASE BANK, N.A.
$2,700,000
2015-07-09
Agreement $3,265,000 — from 510 WEST END AVENUE ASSOCIATES, LLC to JPMORGAN CHASE BANK, N.A.
$3,265,000
2015-07-09
Mortgage $953,043 — from 510 WEST END AVENUE ASSOCIATES, LLC to JPMORGAN CHASE BANK, N.A.
$953,043
2015-07-09
Agreement $3,265,000 — from JPMORGAN CHASE BANK, N.A. to 510 WEST END AVENUE ASSOCIATES, LLC
$3,265,000
2011-04-01
Agreement $2,500,000 — from 510 WEST END AVENUE ASSOCIATES, LLC to NEW YORK COMMUNITY BANK
$2,500,000
2009-08-14
Agreement $3,200,000 — from FRONTIER REALTY LLC; SACKMAN, BARBARA; SACKMAN, ALAN to CAPITAL ONE, N.A.
$3,200,000
2009-08-14
Agreement $6,313,944 — from FRONTIER REALTY LLC to CAPITAL ONE, N.A.
$6,313,944
2006-02-06
AL&R $3,200,000 — from NORTH FORK BANK to FRONTIER REALTY, LLC.
$3,200,000
2006-02-06
Mortgage $3,200,000 — from FRONTIER REALTY, LLC. to NORTH FORK BANK
$3,200,000
2004-02-17
Mortgage $566,123 — from FRONTIER REALTY LLC to NORTH FORK BANK
$566,123
2004-02-17
Agreement $1,750,000 — from FRONTIER REALTY LLC to NORTH FORK BANK
$1,750,000
2002-07-11
Mortgage $340,552 — from FRONTIER REALTY, LLC to NORTH FORK BANK
$340,552
1998-10-29
Mortgage $900,000 — from UNIQUE RESTORATIONSCO. to NORTH FORK BANK
$900,000
Ten-year activity
20100
2017
2018
2019
2020
2021
13
2022
2023
2024
2025
2026
EnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
Year
Enforcement
Housing & tenants
Ownership & money
Health & systems
Total
2017
0
1
0
2
3
2018
0
1
0
1
2
2019
0
1
0
2
3
2020
0
0
1
1
2
2021
0
4
0
1
5
2022
0
7
0
6
13
2023
1
5
0
2
8
2024
0
2
4
2
8
2025
1
4
0
2
7
2026
1
3
0
0
4
This record is free. Keeping it free costs money. Servers, data pipelines, weekends. Pay what you want — a dollar helps.
HPD 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
2026-01-02
FDNY inspection (FORTH)
2025-12-30
FDNY inspection (RISK)
2025-11-15
Boiler inspection
2025-11-05
Bedbug filing: 0 infested units
2025-10-29
Bedbug filing: 0 infested units
The full timeline
2026
2026-09-10311: Lead — Lead Kit
2026-04-30Bedbug filing: 0 infested units
2026-04-29HPD 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
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
2024
2024-11-22HPD 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
2024-10-07311: Abandoned Vehicle — With License Plate
2024-08-20Rodent inspection: Passed
2024-05-14Boiler inspection
2024-05-07Deed — from 510 WEST END AVENUE ASSOCIATES, LLC to MAWEA, LLC; WAS 510, LLC; A&W 510, LLC
2024-05-07Mortgage $2,240 — from A & W 510, LLC; WAS 510, LLC; MAWEA, LLC to JPMORGAN CHASE BANK, N.A.$2,240
2024-05-07Agreement $2,700,000 — from MAWEA, LLC; WAS 510, LLC; A & W 510, LLC to JPMORGAN CHASE BANK, N.A.$2,700,000
2022-08-16311: Illegal Parking — Blocked Bike Lane
2022-04-26Rodent inspection: Passed
2022-04-08Rodent inspection: Bait applied
2022-03-31Boiler inspection
2022-03-25Rodent inspection: Failed for Rat Activity
2022-02-17Rodent inspection: Failed for Rat Activity
2022-02-16HPD 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
2021-04-02HPD 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
2021-04-01Bedbug filing: 0 infested units
2021-03-15Boiler inspection
2020
2020-08-19LDMK — from NYC LANDMARKS PRESERVATION COMMISSION
2020-02-20Boiler inspection
2019
2019-06-13311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2019-05-22Rodent inspection: Passed
2019-01-15Boiler inspection
2018
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
2018-08-31Rodent inspection: Passed
2017
2017-11-28Rodent inspection: Passed
2017-11-09HPD 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
2015-07-09Agreement $3,265,000 — from 510 WEST END AVENUE ASSOCIATES, LLC to JPMORGAN CHASE BANK, N.A.$3,265,000
2015-07-09Mortgage $953,043 — from 510 WEST END AVENUE ASSOCIATES, LLC to JPMORGAN CHASE BANK, N.A.$953,043
2015-07-09Agreement $3,265,000 — from JPMORGAN CHASE BANK, N.A. to 510 WEST END AVENUE ASSOCIATES, LLC$3,265,000
2015-07-09Mortgage assigned — from NEW YORK COMMUNITY BANK to JPMORGAN CHASE BANK, N.A.
2015-05-21Permit AL — ISSUED
2015-05-07Rodent inspection: Passed
2015-04-06311: Water System — Leak (Use Comments) (WA2)
2015-02-03HPD 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
2012-08-06Job filed: PROPOSED INSTALLATION OF PIPE SCAFFOLD AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
2012-07-06Permit EQ — ISSUED
2012-07-06Job filed: PROPOSED INSTALLATION OF SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
2012-06-27Job filed: INTERIOR TO THE APT#2 AT CELLAR AND BASEMENT LEVEL. CONSTRUCT NEW METAL STAIRS AND BALCONY. REMOVE WINDOW AND INSTALL NEW SLIDING DOORS. REPLACE EXIST$127,000
2012-06-27Job filed: INTERIOR TO THE APT#2 AT CELLAR AND BASEMENT LEVEL. CONSTRUCT NEW METAL STAIRS AND BALCONY. REMOVE WINDOW AND INSTALL NEW SLIDING DOORS. REPLACE EXIST$127,000
2012-06-27Job filed: STRUCTURAL WORK.$20,000
2012-05-10Job filed: PROPOSE TO REPLACE FUEL OIL BURNING BOILER WITH NEW GAS BOILER. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.$15,600
2012-05-10Job filed: PROPOSE TO REPLACE FUEL OIL BURNING BOILER WITH NEW GAS BOILER. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.$15,600
2012-03-22Rodent inspection: Passed
2011
2011-11-02Rodent inspection: Passed
2011-04-01Mortgage assigned — from CAPITAL ONE, N.A. to NEW YORK COMMUNITY BANK
2011-04-01Agreement $2,500,000 — from 510 WEST END AVENUE ASSOCIATES, LLC to NEW YORK COMMUNITY BANK$2,500,000
2011-04-01PREL — from CAPITAL ONE, N.A. to FRONTIER REALTY LLC,
2011-04-01TL&R — from CAPITAL ONE, N.A.
2011-04-01Mortgage assigned — from CAPITAL ONE, N.A. to NEW YORK COMMUNITY BANK
2011-04-01TL&R — from CAPITAL ONE, N.A.
2010
2010-11-24Deed — from FRONTIER REALTY, LLC to 510 WEST END AVENUE ASSOCIATES, LLC
2010-09-20Rodent inspection: Passed
2009
2009-08-14Agreement $3,200,000 — from FRONTIER REALTY LLC; SACKMAN, BARBARA; SACKMAN, ALAN to CAPITAL ONE, N.A.$3,200,000
2009-08-14Agreement $6,313,944 — from FRONTIER REALTY LLC to CAPITAL ONE, N.A.$6,313,944
2008
2008-12-23Tenant complaint: HEATING — HEAT RELATED
2007
2007-12-20Job filed: DM
2007-12-20Job filed: DM
2007-05-21Job filed: BUILDER PAVING PLAN FILED FOR 40 LINEAR FEET IN CONJUCTION WITH NB 104557169 ON WEST END AVE.
2007-05-21Job filed: INSTALLATION OF SPRINKLER ALARM ALARM SYSTEM FOR NEW BUILDING AS PER PLA CHANGE TO USE EGRESS OR OCCUPANCY.APPLICTION FILED IN CONJ. WITH NB. 10455716$1,000
2007-05-21Job filed: INSTALLATION OF SPRINKLER ALARM ALARM SYSTEM FOR NEW BUILDING AS PER PLA CHANGE TO USE EGRESS OR OCCUPANCY.APPLICTION FILED IN CONJ. WITH NB. 10455716$1,000
2007-04-17Job filed: INSTALLATION OF SPRINKLER SYSTEM AS PER PLANS FILED HEREWITH IN CONJ. WITH NB #104557169 NO CHANGE TO USE EGRESS OR OCCUPANCY.$1,000
2007-04-17Job filed: INSTALLATION OF STANDPIPE SYSTEMS AS SHOWN ON PLANS FILED HEREWITH IN CONJ. WITH NEW BUILDING APPL. # 104557169. NO CHANGE TO USE EGRESS OR OCCUPANCY$1,000
2006
2006-12-07Job filed: NB
2006-12-07Job filed: NB
2006-12-04Job filed: NB
2006-12-01Job filed: NB
2006-12-01Job filed: NB
2006-10-20CERT — from FRONTIER REALTY, LLC
2006-10-20ZONE — from FRONTIER REALTY, LLC
2006-09-25Job filed: NB
2006-05-05CERT — from ROYAL ABSTRACT OF NEW YORK LLC
2006-05-05ZONE — from FRONTIER REALTY, LLC
2006-02-06AL&R $3,200,000 — from NORTH FORK BANK to FRONTIER REALTY, LLC.$3,200,000
2006-02-06Mortgage $3,200,000 — from FRONTIER REALTY, LLC. to NORTH FORK BANK$3,200,000
2004
2004-02-17Mortgage $566,123 — from FRONTIER REALTY LLC to NORTH FORK BANK$566,123
2004-02-17AL&R — from NORTH FORK BANK to FRONTIER REALTY LLC
2004-02-17Agreement $1,750,000 — from FRONTIER REALTY LLC to NORTH FORK BANK$1,750,000
2004-02-17TL&R — from NORTH FORK BANK
2002
2002-07-11Mortgage $340,552 — from FRONTIER REALTY, LLC to NORTH FORK BANK$340,552
2002-07-11SAGE — from NORTH FORK BANK
2002-07-11Mortgage assigned — from FRONTIER REALTY, LLC to SPX CREDIT CORP.
2002-07-11Agreement — from FRONTIER REALTY, LLC to NORTH FORK BANK
2000
2000-05-02Deed — from HARKAVY, RUSSELL; HARKAVY, GEORGE; FULLER, ROBERT H.; SACKMAN, ALAN to FRONTIER REALTY, LLC
2000-02-18Deed — from UNIQUE RESTORATIONSCO. to FULLER, ROBERT H.; HARKAVY, GEORGE; SACKMAN, ALAN; HARKAVY, RUSSELL
1998
1998-11-04Mortgage satisfied — from 1977 NOMINEE CORP. to MAMAL REALTY CORP.; BRANDT, ARTHUR
1998-11-04Mortgage satisfied — from 1977 NOMINEE CORP. to FOURTH FEDERAL SAVINGS & LOAN ASSOCIATIO
1998-10-29Mortgage assigned — from UNIQUE RESTORATIONSCO. to NORTH FORK BANK
1998-10-29Mortgage $900,000 — from UNIQUE RESTORATIONSCO. to NORTH FORK BANK$900,000
1983
1983-03-10Mortgage assigned — from MALLAMUD-FINKELSTEINETC to MALLAMUD-FINKELSTEININC
1978
1978-03-02Agreement — from 1977 NOMINEE CORP to FOURTH FEDERAL S/LAETAL
1978-03-02Deed — from UNIQUE RESTORATIONSCO to 1977 NOMINEE CORP
1978-03-02Deed — from 1977 NOMINEE CORP to UNIQUE RESTORATIONS
1977
1977-06-24Mortgage assigned — from MAMAL REALTY CORP to MALLAMUD FINKELSTEINASC
1977-06-06Deed — from MAMAL REALTY CORP; BRANDT, ARTHUR to 1977 NOMINEE CORP
1977-06-06Deed — from 1977 NOMINEE CORP to UNIQUE RESTORATIONSCO
1976
1976-12-07Deed — from FINKELSTEIN, HOWARD to MAMAL, REALTY CORP
1976-12-07Deed — from FRIEDMAN, MORRIS R; CANDEST REALTY WESTETAL to FINKELSTEIN, HOWARD; BRANDT, ARTHUR
1974
1974-10-01MISC — from BRANDT, ARTHUR
1974-10-01Deed — from HERBIK, RICHARD; HERBIK, RICHARD to CANDEST REALTY WESTCORP; CANDEST REALTY WESTCORP
1974-10-01Deed — from HERBIK, RICHARD; HERBIK, RICHARD to CANDEST REALTY WESTCORP; CANDEST REALTY WESTCORP
1974-10-01Mortgage — from CANDEST REALTY WESTCORP to HERBIK, RICHARD
1973
1973-04-25Deed — from BRANDT, ARTHUR to HERBIK, RICHARD
1973-04-25Mortgage — from HERBIK, RICHARD to BRANDT, ARTHUR
1972
1972-11-08Deed — from TUNGHAI ASSOCIATES INC to BRANDT, ARTHUR
1972-11-08Mortgage — from BRANDT, ARTHUR to TUNGHAI ASSOCIATES INC
1971
1971-01-11Deed — from SAPORAS, MARILYN; MERS, JENNIE to TUNGHAI ASSOCIATES,INC
1971-01-11Mortgage — from TUNGHAI ASSOCIATES,INC. to SAPORAS, MARILYN; MERS, JENNIE
1969
1969-04-24Deed — from MERS, SIMEON to MERS, JENNIE; SAPONAS, MARILYN