Syon House — designed by Robert Adam [FACT-1632]; featured in Gosford Park (2001) [FACT-1636].
Location: Isleworth, London, London Borough of Hounslow, England, United Kingdom
Verified facts
- Designed by Robert Adam
confidence 85/100 · 3 independent sources · SRC-1558, SRC-1560, SRC-1561 - Appeared in Gosford Park (None) — None, 2001
confidence 70/100 · 2 independent sources · SRC-1562, SRC-1563
Evidence & sources
- SRC-1558 — Historic England — List Entry 1080318, Syon House (Grade I) (Tier 1, official_archive; retrieved June 2026)
- SRC-1560 — Historic Houses — Syon House (Tier 2, institutional_page; retrieved June 2026)
- SRC-1561 — Encyclopaedia Britannica — Syon House (Tier 2, encyclopedia; retrieved June 2026)
- SRC-1562 — Syon Park official site — Filming & Photoshoots (Tier 1, official_site; retrieved June 2026)
- SRC-1563 — The Worldwide Guide to Movie Locations — Gosford Park (Tier 2, reference_site; 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.