423 AMSTERDAM AVENUE is a prewar 1888 building, 5 floors, 16 units in Upper West Side, NYC. Owned by 423 AMCO C/O LAWRENCE E ARNSTEN. Public records show 36 open violations, 8 311 complaints on file. Risk signals: 1 bedbug report. Lucid Rents has 2 verified tenant reviews on this building.
Drop this scorecard into a tenant guide, blog post, or wiki. It updates itself as new violations are filed.
Manhattan · March 2026
Best & worst months to sign a lease
Potential savings: ~7% by timing your move to March.
Monthly counts over the last 7 years · all data sources
(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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
§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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISES FOR NONPAYMENT OF RENT UNTIL A VALID REGISTRATION STATEMENT IS FILED.
§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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISES FOR NONPAYMENT OF RENT UNTIL A VALID REGISTRATION STATEMENT IS FILED.
(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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Pros: Clean, secure, quiet Cons: Insulation could be better, some drafts
Pros: Good management and good water pressure Cons: Building is located on a main street so it is a little louder
Portfolio-level grade reflects the landlord's buildings across NYC, weighted by unit count. Individual building grades may differ.
View full landlord profileACRIS deeds and regulatory filings
The stretch of the Upper West Side flanking the American Museum of Natural History is quintessential family Manhattan — stroller-packed sidewalks, the best bagels in the city (Absolute Bagels, H&H), and Riverside Park steps away.
Lead — Lead Kit Request (Residential) (L10)
Noise — Noise: Construction Before/After Hours (NM1)
HPD Class A Violation — (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR
HPD Class I Violation — §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-20
Noise - Street/Sidewalk — Loud Talking
HPD Class I Violation — §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-20
Noise - Commercial — Loud Music/Party
Noise - Commercial — Loud Music/Party
HPD Class A Violation — (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR
Noise - Street/Sidewalk — Loud Music/Party