Manhattan · Unit 11S · BBL 1008901421
143 East 34th Street, Unit 11S
New York, NY 10016 · Manhattan
Also written as: 143 E 34th St Apt 11S · 143 East 34th Street #11S · 143 E 34th St Unit 11S
Part of 143 East 34th Street Condominium
Owner of record: W 11 ST HF LLC
Snapshot updated 2026-09-02 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $170,271
- Market value: $378,380
- Tax class: 2
Last recorded sale
$1,771,480 on 2026-03-02 (class R4)
Building
- Condominium (RM)
- Built 1961, altered 1962
- 330 residential / 336 units
- 19 floors
- Zoning: C1-9
- Lot area: 23,337 sf
- Building area: 259,254 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/143-east-34-street-11s-1008901421
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