Manhattan · BBL 1013920009
9 East 77th Street
New York, NY 10075 · Manhattan
Also written as: 9 E 77th St · 9 East 77th Street
Owner of record: THOMAS KOROSSY
Snapshot updated 2026-09-02 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $939,000
- Market value: $15,650,000
- Tax class: 1
Building
- One-family dwelling (A4)
- Built 1879, altered 1970
- 1 residential / 1 units
- 5 floors
- Zoning: R8B
- Lot area: 1,703 sf
- Building area: 7,240 sf
- Historic district: Upper East Side Historic District
Official records
ZoLa zoning · DOF property tax · Property Portal · ACRIS deeds/mortgages · DOB profile · Tax map · Map
All data sourced from NYC Department of Finance / PLUTO / ACRIS / HPD public records. https://www.sageops.ai/property/manhattan/9-east-77-street-1013920009
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