Questions about Harry F. Sinclair House
What design work is credited to C. P. H. Gilbert at Harry F. Sinclair House?
C. P. H. Gilbert designed Harry F. Sinclair House.
More documented details
Harry F. Sinclair House is in Upper East Side, New York City.
Sources: SRC-2486 · SRC-2487 · SRC-7650
The recorded construction date for Harry F. Sinclair House is 1899.
Sources: SRC-2486 · SRC-2487 · SRC-7650
The recorded style of Harry F. Sinclair House is Eclectic French Renaissance.
Sources: SRC-2488 · SRC-2489 · SRC-7650
Harry F. Sinclair House is connected to Cruel Intentions (movie, 1999).
Harry F. Sinclair House is an Eclectic French Renaissance house in New York City, New York, and a filming location for Cruel Intentions (1999). Built in 1899, it was designed by C. P. H. Gilbert, and is a National Historic Landmark. It is owned by Ukrainian Institute of America.
Location: Upper East Side, New York City, New York, United States
Verified facts
- Located in Upper East Side, New York City
confidence 90/100 · 4 recorded source groups · SRC-2486, SRC-2487, SRC-7650, SRC-7651 - Designed by C. P. H. Gilbert
confidence 80/100 · 4 recorded source groups · SRC-2486, SRC-2488, SRC-7650, SRC-7652 - Built in 1899
confidence 75/100 · 3 recorded source groups · SRC-2486, SRC-2487, SRC-7650 - Architectural style: Eclectic French Renaissance
confidence 80/100 · 5 recorded source groups · SRC-2488, SRC-2489, SRC-7650, SRC-2486, SRC-9751 - Historic designation: National Historic Landmark
confidence 75/100 · 3 recorded source groups · SRC-2486, SRC-2487, SRC-7651 - Owned by Ukrainian Institute of America
confidence 90/100 · 4 recorded source groups · SRC-2486, SRC-2487, SRC-7651, SRC-7650 - Appeared in Cruel Intentions (movie, 1999)
confidence 80/100 · 5 recorded source groups · SRC-2490, SRC-2491, SRC-7653, SRC-4213, SRC-9633
Evidence & sources
- SRC-2486 — Wikipedia — Harry F. Sinclair House (Tier 3, encyclopedia; retrieved June 2026)
- SRC-2487 — New York Landmarks Conservancy — Ukrainian Institute of America (Tier 2, institutional_page; retrieved June 2026)
- SRC-2488 — Daytonian in Manhattan — The Isaac D. Fletcher Mansion (Tier 3, established_blog; retrieved June 2026)
- SRC-2489 — 6sqft — How the Fletcher-Sinclair Mansion Went from Private Home to the Ukrainian Institute of America (Tier 3, established_blog; retrieved June 2026)
- SRC-2490 — Movie-Locations.com — Cruel Intentions (1999) film locations (Tier 3, film_location_database; retrieved June 2026)
- SRC-2491 — IAMNOTASTALKER — The Valmont Mansion from Cruel Intentions (Tier 3, established_blog; retrieved June 2026)
- SRC-4213 — brickunderground.com (Tier 2, journalism; retrieved June 2026)
- SRC-7650 — National Park Service – NHL/NRHP Nomination Form, Harry F. Sinclair House (NRHP #78001882) (Tier 1, official; retrieved June 2026)
- SRC-7651 — Ukrainian Institute of America – About Us (official site) (Tier 1, official; retrieved June 2026)
- SRC-7652 — NYC-ARTS – Ukrainian Institute of America / Fletcher-Sinclair Mansion (Tier 2, reference; retrieved June 2026)
- SRC-7653 — On the Set of New York – Cruel Intentions (1999) Film Locations (Tier 2, reference; retrieved June 2026)
- SRC-9633 — Scouting NY — Inside the Fletcher Mansion on Fifth Avenue (Tier 2, location_journalism; retrieved June 2026)
- SRC-9751 — Ephemeral New York: This 1899 Gilded Age fairy-tale mansion on Fifth Avenue has had only 4 owners (Tier 2, journalism; retrieved June 2026)
How we verify
The entries above show the sources and confidence scores recorded in our fact ledger.
Source tiers are internal classifications, not guarantees of accuracy or independence.
Several sources may repeat the same underlying account; a source count alone does not establish independent corroboration. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.