Benjamin N. Duke House — built in 1901 [FACT-2995].
Location: Upper East Side, New York City, New York, United States
Verified facts
- Built in 1901
confidence 70/100 · 2 independent sources · SRC-2711, SRC-2712
Evidence & sources
- SRC-2711 — Landmarks Preservation Commission, 1009 Fifth Avenue House, LP-0805 (Tier 1, official_archive; retrieved June 2026)
- SRC-2712 — Daytonian in Manhattan — The Benjamin Duke House, 1009 Fifth Avenue (Tier 2, architectural_history; retrieved June 2026)
How we verify
Every fact above is independently corroborated by at least two reputable sources and
confidence-scored before publication. Claims that cannot clear that bar are withheld. We publish
location only at neighborhood/city granularity — exact street addresses and personal information
are structurally barred from publication. Last reviewed June 2026.