Manhattan · BBL 1010550029
643 9th Avenue
New York, NY 10036 · Manhattan
Also written as: 643 9th Ave · 643 9th Avenue
Owner of record: AETNA WEST, LLC
Snapshot updated 2026-09-30 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $5,037,300
- Market value: $11,194,000
- Tax class: 2
Last recorded sale
$18,000,000 on 2025-09-08 (class C7)
Building
- Walk-up apartment (C7)
- Built 1910, altered 1980
- 20 residential / 22 units
- 5 floors
- Zoning: R8
- Lot area: 3,200 sf
- Building area: 15,200 sf
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/643-9-avenue-1010550029
Estimates are automated, not appraisals. Disclaimer · Terms · Privacy · Contact