721 MADISON AVENUE is a prewar 1908 building, 10 floors, 32 units in Upper East Side, NYC. Owned by CHARLES H. GREENTHAL & CO.. Public records show 23 open violations on file.
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Manhattan · March 2026
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Potential savings: ~12% by timing your move to October.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
Monthly counts over the last 7 years · all data sources
§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.
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View full landlord profileTop 2 by score · of 3 total
ACRIS deeds and regulatory filings
The Lenox Hill area of the Upper East Side is refined, residential Manhattan — world-class hospitals, the Park Avenue corridor, and proximity to Central Park define daily life. It's quieter and more established than neighborhoods further south.
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