20 Warren Street
Financial District, Manhattan
Parcel ID (BBL): 1001350009
Owner: Flatiron Real Estate Advisors
Debt: July 12, 2022, $9.8 million
Built: 1915
Renovated: 1989
SF: 11,300
Dwelling units: 4
No. of buildings: 1
Class: Primarily Four Family With Store or Office (S4)
Floors: 5
HPD Ownership Registration Information
Last registered: 2025-08-21 (expires 2026-09-01)
Jack Ancona
Head Officer
111 WORTH STREET 16K NEW YORKN, NY, 10013
20 Warren Street Llc
Corporate Owner
111 WORTH STREET 16K New York, NY, 10013
Jack Ancona
Agent
111 WORTH STREET 16K New York, NY, 10013
Jack Ancona
Site Manager
Transactions:
• Flatiron Real Estate Advisors borrowed $9.8 million from BCB Community Bank for 20 Warren Street, Financial District, Manhattan on July 12, 2022.
Development:
• Steven Ancona filed plans for major alteration for 16,588 sqft in Financial District, Manhattan, on August 29, 2025.
• Steven Ancona filed plans for alteration in Financial District, Manhattan, on March 24, 2022.
• Steven Ancona filed plans for alteration in Financial District, Manhattan, on March 24, 2022.
• Jack Ancona filed plans for alteration in Financial District, Manhattan, on October 24, 2018.
• Jack Ancona filed plans for PA in Financial District, Manhattan, on April 18, 2007.
Violations:
According to city public data, the properties have received one DOB violation and $250 in OATH penalties in the last year.