421 E 78TH ST, New York, NY 10075 is a rental building in Upper East Side, NYC. See every violation, 311 complaint, tenant review, and the LucidIQ score — before you sign a lease.
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ACRIS deeds and regulatory filings
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Monthly counts over the last 7 years · all data sources
No HPD records on file in the last 7 years.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
Manhattan · March 2026
Best & worst months to sign a lease
Potential savings: ~11% by timing your move to October.
The Yorkville stretch of the Upper East Side between 77th and 83rd streets retains traces of its Czech and Hungarian heritage amid upscale townhouses and boutiques. It's quieter than the avenues, with excellent access to Central Park's eastern entrances.