The city's published records show little recorded distress here in the last three years. Less recorded distress than 69% 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 6.7. 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
3 total — 0 class C (immediately hazardous), 2 class B, 1 class A. Oldest open since 1987-02-05.
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.
What 311 hears from this address
8 service requests in the last three years. Most common: Noise (3) · New Tree Request (1) · Lead (1) · Curb Condition (1) · Sewer (1) · Food Establishment (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 (1888)
Yes
Six or more residential units (15)
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)
423. AMCO C/O LAWRENCE ARNSTEN
Head officer
LAWRENCE E ARNSTEN
Managing agent
PAUL ARNSTEN
Last registered
2025-09-06
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
$4,217,000
$1,897,650
2026
$4,375,000
$1,968,750
2027
$4,446,000
$2,000,700
The city's market estimate has risen
5% between tax years 2025 and 2027.
1 Food Establishment complaint to 311 at this address in the last three years (most often: Rodents/Insects/Garbage) · complaints filed by the public; DOHMH investigates, outcomes aren't published.
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.
1 street-flooding or sewer-backup complaints at this address since
2026 (1 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.
Getting around
Subway
79 St — 1 · 600 ft straight-line (about a 3-minute walk) · station accessibility: none
Bus
Nearest boarding stop: Amsterdam Av / W 79 St — M7 M11 M79-SBS · 300 ft · Select Bus Service
Citi Bike
Amsterdam Ave & W 79 St · 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.
8 311 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.
Sales, deeds & mortgages
Most recent mortgage recorded against this lot: $1,450,000 on
1986-05-29 (lender: East New York Svgs Bk). Face amount at recording — it may have since been paid
down, refinanced or satisfied. View the recorded
document.
Date
Record
Amount
Per res. unit
2015-12-16
Agreement $575,000 — from 423 AMCO to M & T REAL ESTATE TRUST
$575,000
2011-04-28
Agreement $1,101,093 — from 423 AMCO to M & T REAL ESTATE TRUST
$1,101,093
1986-05-29
Mortgage $1,450,000 — from 423 AMCO to EAST NEW YORK SVGS BK
$1,450,000
1984-04-04
Mortgage $100,000 — from STELLAR PROPERTIES,INC. to MCNAMARA, JOSEPH H.
$100,000
Ten-year activity
50250
2017
22
2018
2019
2020
2021
2022
2023
2024
2025
2026
EnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
Year
Enforcement
Housing & tenants
Ownership & money
Health & systems
Total
2017
1
6
0
1
8
2018
2
4
2
14
22
2019
0
3
0
7
10
2020
0
4
0
2
6
2021
0
4
0
2
6
2022
2
7
0
6
15
2023
0
4
0
3
7
2024
0
3
0
3
6
2025
2
2
0
4
8
2026
0
4
0
7
11
This record is free. Keeping it free costs money. Servers, data pipelines, weekends. Pay what you want — a dollar helps.
2024-05-09Restaurant inspection: SARABETH'S — grade A
2024-05-08Boiler inspection
2024-04-16311: Noise — Noise: Construction Before/After Hours (NM1)
2024-04-01HPD 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
2024-02-20Rodent inspection: Passed
2023
2023-11-15HPD 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
2023-06-01Rodent inspection: Failed for Other Reason
2023-03-29Rodent inspection: Failed for Other Reason
2022
2022-12-30Bedbug filing: 0 infested units
2022-12-19Rodent inspection: Bait applied
2022-11-10Restaurant inspection: SARABETH'S — grade A
2022-11-02Rodent inspection: Failed for Rat Activity
2022-11-02HPD 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
2022-09-14Rodent inspection: Failed for Rat Activity
2022-08-17311: New Tree Request — For One Address
2022-02-15HPD 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
2014-03-25Job filed: INSTALLATION OF HEAVY DUTY SIDEWALK SHED FOR REMEDIAL REPAIRS. LIVE LOAD 300 PSF. SIDEWALK SHED SHALL COMPLY WITH CHAPTER #33 OF THE 2008 CODE NO CHAN
2013
2013-09-18311: Broken Muni Meter — Coin or Card Did Not Register
2013-05-30Rodent inspection: Passed
2012
2012-07-10311: New Tree Request — For One Address
2012-03-27Rodent inspection: Passed
2012-02-10311: New Tree Request — For One Address
2011
2011-09-29Rodent inspection: Passed
2011-05-16311: Taxi Complaint — Driver Complaint
2011-04-28Agreement $1,101,093 — from 423 AMCO to M & T REAL ESTATE TRUST$1,101,093
2011-04-18311: Damaged Tree — Entire Tree Has Fallen Down
2011-02-18311: Illegal Tree Damage — Branches Damaged
2010
2010-07-07Permit EW — ISSUED
2010-05-13Job filed: AIR CONDITIONING INSTALLATION. THERE WILL BE NO CHANGE IN USE, EGRESS OR OCCUP ANCY.$30,000
2010-05-13Job filed: AIR CONDITIONING INSTALLATION. THERE WILL BE NO CHANGE IN USE, EGRESS OR OCCUP ANCY.$30,000
2008-08-19HPD class B: SECTION 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSE HOLD ITEMS AT PUBLIC HALL, 6th STORY
2008-06-05Job filed: EXTEND KITCHEN EXHAUST DUCT TO ROOF AND INSTALL AN EXHAUST FAN ON THE ROOF, RELOCATE EXISTING CONDENSING UNIT AS PER PLANS. NO CHANGE IN USE, EGRESS O$12,000
2007
2007-03-12Tenant complaint: PLUMBING — RADIATOR
2007-03-12Tenant complaint: ELECTRIC — ELECTRIC-SUPPLY
2007-01-24Permit EW — ISSUED
2007-01-18Job filed: INSTALL FIRE SUPPRESSION SYSTEM ONLY. NOCHANGE IN USE, EGRESS OR OCCUPAN CY.$3,000
2007-01-18Job filed: INSTALL FIRE SUPPRESSION SYSTEM ONLY. NOCHANGE IN USE, EGRESS OR OCCUPAN CY.$3,000
2003
2003-11-20Tenant complaint: HEATING — HEAT RELATED
2003-10-24Tenant complaint: HEATING — HEAT RELATED
2003-10-20Tenant complaint: HEATING — HEAT RELATED
2003-10-18Tenant complaint: HEATING — HEAT RELATED
2003-10-18Tenant complaint: HEATING — HEAT RELATED
2003-10-18Tenant complaint: HEATING — HEAT RELATED
2003-03-19DOB violation LL6291:
2003-03-19DOB violation LL6291:
2002
2002-03-26DOB violation LL6291:
2002-03-26DOB violation LL6291:
2001
2001-07-27Mortgage assigned — from 423 AMCO to M&T REAL ESTATE, INC.
2001-07-27SAGE — from M&T REAL ESTATE, INC.
2001-07-27Agreement — from 423 AMCO to M&T REAL ESTATE, INC.
2001-02-27DOB violation LL6291:
2001-02-27DOB violation LL6291:
2001-02-27DOB violation LL6291:
2000
2000-02-07DOB violation LL6291:
2000-02-07DOB violation LL6291:
1999
1999-03-16DOB violation LL6291:
1999-03-16DOB violation LL6291:
1998
1998-08-24DOB complaint, category ?
1998-05-04DOB violation LL6291:
1998-05-04DOB violation LL6291:
1997
1997-09-16DOB violation LL6291:
1997-09-16DOB violation LL6291:
1997-09-16DOB violation LL6291:
1997-04-03ECB Non-Hazardous violation: NO EQUIPMENT USE PERMIT NOTED: THREE AIR CONDITION UNITS INSTALLED ON UPPER ROOF. MODEL (1) 38EH024300 2)38EH36300 3)38AED12500 WI$500
1997-02-10DOB violation LL6291:
1997-02-10DOB violation LL6291:
1997-02-07Mortgage assigned — from EAST NEW YORK SAVINGS BANK to MANUFACTURERS & TRADERS TRUST COMPANY
1997-02-07Agreement — from 423 AMCO to M&T REAL ESTATE, INC.
1997-02-07Mortgage assigned to M&T REAL ESTATE, INC.
1997-02-07Mortgage assigned — from MANUFACTURERS & TRADERS TRUST COMPANY to M&T REAL ESTATE, INC.
1996
1996-11-20DOB complaint, category ?
1995
1995-08-29DOB violation LL6291:
1995-08-29DOB violation LL6291:
1994
1994-09-01DOB violation LL6291:
1994-09-01DOB violation LL6291:
1994-09-01DOB violation LL6291:
1990
1990-09-25ECB Non-Hazardous violation: BOILER ROOM NOT TO BE USED AS A STORAGE ROOM.REMOVE ALL WOOD AND PAPER BOXES
1990-05-29SAGE — from LANDMARKS PRSVN COMMSN
1988
1988-06-16Deed — from TOGO PROPERTIES INC; TOGO PROPERTIES INC to TOGO PROPERTIES NY INC; TOGO PROPERTIES NY INC
1988-06-16PAT — from TOGO PROPERTIES to HAHN, MAX
1987
1987-02-05HPD class A: D26-22.03 ADM CODE POST SIGN ON WALL OF ENTRANCE STORY BEARING NAME, ADDRESS INCLUDING APARTMENT NUMBER IF ANY, AND TELEPHONE NUMBER OF SUPE
1987-02-05HPD class B: D26-10.01, 10.05 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS CELLAR TO BOILER ROOM.
1986
1986-05-29Mortgage assigned — from ERNSTOFF, ROBERT M to EAST NEW YORK SVGS BK
1986-05-29Mortgage $1,450,000 — from 423 AMCO to EAST NEW YORK SVGS BK$1,450,000
1986-05-29Mortgage assigned — from MCNAMARA,JOSEPH HEMINGWY to ERNSTOFF, ROBERT M.
1986-05-29Agreement — from EAST NY SAVINGS BANK to 423 AMCO
1984
1984-04-23Mortgage satisfied — from 423 AMSTERDAM AVE. CORP.; FANOB REALTY CORP. to FRANK, WALTER ET AL; ELU PROPERTIES, INC.
1984-04-04Deed — from MC NAMARA, JOSEPH H. to STELLAR PROPERTIES,INC.
1984-04-04Deed — from STELLAR PROPERTIES,INC. to 423 AMCO
1984-04-04Mortgage $100,000 — from STELLAR PROPERTIES,INC. to MCNAMARA, JOSEPH H.$100,000
1984-04-04Mortgage satisfied — from 423 AMSTERDAM AVE. CORP. to SHAFRAN, ISRAEL & ANO
1984-04-04Mortgage satisfied — from WHIPPLE, GEORGE A. to 423 AMSTERDAM AVE, CORP.
1982
1982-10-19Mortgage assigned — from SHMIDMAN, MICHAEL to CHARTIN 14 REALTY CORP
1981
1981-07-15Deed — from WHIPPLE, GEORGE A; MC NAMARA, A JOSEPH to MC NAMARA, JOSEPH; HEMINGWAY
1980
1980-11-10Mortgage assigned — from CHARTIN 14 REALTY CORP to SHMIDMAN, MICHAEL
1980-11-10Mortgage assigned — from 423 AMSTERDAM AVE CORP to CHARTIN 14 REALTY CORP
1980-11-10Mortgage assigned — from CHARTIN 14 REALTY CORP to KESTENBAUM, ROBERT
1979
1979-10-02Agreement — from 423 AMSTERDAM AVE CORP to SHAFRAN, JULIA; SHAFRAN, ISRAEL
1979-10-02Deed — from 423 AMSTERDAM AVE CORP to MC NAMARA, JOSEPH A; WHIPPLE, GEORGE A
1979-10-02Mortgage — from WHIPPLE, GEROGE A; MCNAMARA, JOSEPH A to 423 AMSTERDAM AVE CORP
1979-10-02Agreement — from 423 AMSTERDAM AVE CORP to GAFNI, BETTY AKA; GAFNI, GOLDIE EXTRX
1977
1977-08-03Mortgage — from 423 AMSTERDAM AVE CORP to SHOFRAN, ISRAEL; SHOFRAN, JULIA
1972
1972-06-08Agreement — from 423 AMSTERDAM AVE CORP to GAFNI, REUBEN EXUTRX
1968
1968-01-25Agreement — from 423 AMSTERDAM AVE. CORP. to ELU PROPERTIES INC.
1968-01-25Mortgage — from 423 AMSTERDAM AVE. CORP. to ELU PROPERTIES INC.
1968-01-25Mortgage assigned — from ROTHFELD ROBERT B. TR.; FRANK WALTER TR.; ROTHFELD BETTIE (DEC'D); ROTHFELD TRACY TR.; SEI to ELU PROPERTIES INC.
1968-01-25Mortgage assigned — from ELU PROPERTIES INC. to GAFNI REUBEN