Hearst Castle — in San Simeon, San Simeon [FACT-0097]; designed by Julia Morgan [FACT-0098]; built in 1919-1947 [FACT-0099].
Location: San Simeon, San Simeon, California, United States
Verified facts
- Located in San Simeon, San Simeon, California
confidence 70/100 · 2 independent sources · SRC-0103, SRC-0104 - Designed by Julia Morgan
confidence 70/100 · 2 independent sources · SRC-0104, SRC-0105 - Built in 1919-1947
confidence 70/100 · 2 independent sources · SRC-0103, SRC-0104 - Historic designation: National Historic Landmark; National Register of Historic Places; California Historical Landmark No. 640
confidence 75/100 · 3 independent sources · SRC-0103, SRC-0108, SRC-0426
Evidence & sources
- SRC-0103 — California Office of Historic Preservation – Listed Resource 640 (Tier 1, public_record; retrieved June 2026)
- SRC-0104 — California State Parks – Hearst San Simeon State Historical Monument (Tier 1, official_archive; retrieved June 2026)
- SRC-0105 — Hearst Castle (official operator) – Julia Morgan profile (Tier 1, owner_statement; retrieved June 2026)
- SRC-0108 — Noehill – California Historical Landmark 640: Hearst San Simeon (Tier 2, public_record; retrieved June 2026)
- SRC-0426 — The Historical Marker Database (HMdb.org) — Hearst San Simeon State Historical Monument / Hearst Castle marker (Tier 3, reference_database; 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.