Carolands — in Hillsborough [FACT-1174]; designed by Ernest Sanson [FACT-1175].
Location: Hillsborough, California, United States
Verified facts
- Located in Hillsborough
confidence 75/100 · 3 independent sources · SRC-1173, SRC-1174, SRC-1175 - Designed by Ernest Sanson
confidence 85/100 · 3 independent sources · SRC-1173, SRC-1176, SRC-1177
Evidence & sources
- SRC-1173 — Carolands | Hillsborough, CA – Official Website (Tier 1, official_archive; retrieved June 2026)
- SRC-1174 — Carolands – Wikipedia (Tier 3, encyclopedia; retrieved June 2026)
- SRC-1175 — Carolands center of PBS documentary – San Mateo Daily Journal (Tier 2, news_article; retrieved June 2026)
- SRC-1176 — A History of Carolands – Carolands Foundation (Tier 1, official_site; retrieved June 2026)
- SRC-1177 — The Carolands – The Chateau, Hillsborough California (NRHP nomination text) – Historic Structures (Tier 2, heritage_register_nomination; 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.