Manhattan · BBL 1012780014
340 Madison Avenue
New York, NY 10173 · Manhattan
Also written as: 340 Madison Ave · 340 Madison Avenue
Owner of record: 340 MADISON OWNER LLC
Snapshot updated 2026-09-02 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $136,017,900
- Market value: $302,262,000
- Tax class: 4
Building
- Office (O4)
- Built 1922, altered 2003
- 0 residential / 214 units
- 22 floors
- Zoning: C5-3 / C5-2.5
- Lot area: 32,536 sf
- Building area: 558,735 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/340-madison-avenue-1012780014
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