Iolani Palace

Iolani Palace is an Italian Renaissance palace in Honolulu, Hawaii, and a filming location for Hawaii Five-O (1968-1980) and Princess Kaiulani (2009). Built in 1882, it was designed by Thomas J. Baker (with Charles J. Wall and Isaac Moore), and is a National Historic Landmark.

Location: 364 South King Street, Honolulu, Hawaii, United States

Verified facts

• Located in Downtown Honolulu, Honolulu, Hawaii
  confidence 70/100 · 2 recorded source groups · SRC-0339, SRC-0340
• Designed by Thomas J. Baker (with Charles J. Wall and Isaac Moore)
  confidence 70/100 · 2 recorded source groups · SRC-0341, SRC-0339
• Built in 1882
  confidence 70/100 · 2 recorded source groups · SRC-0341, SRC-0342
• Architectural style: Italian Renaissance
  confidence 70/100 · 2 recorded source groups · SRC-0341, SRC-0339
• Historic designation: National Historic Landmark (designated 1962-12-29); National Register of Historic Places (listed 1966-10-15)
  confidence 85/100 · 3 recorded source groups · SRC-0339, SRC-0340, SRC-0479
• Appeared in Hawaii Five-O (tv, 1968-1980) — as Five-O task force headquarters (filming location)
  confidence 80/100 · 8 recorded source groups · SRC-0343, SRC-0344, SRC-3001, SRC-3660, SRC-5336, SRC-5337, SRC-9561, SRC-9895
• Appeared in Princess Kaiulani (movie, 2009)
  confidence 75/100 · 4 recorded source groups · SRC-3442, SRC-3443, SRC-3685, SRC-4201

Evidence & sources

• SRC-0339 — National Park Service – Iolani Palace, Honolulu, Hawai'i (Tier 1, official_archive; retrieved June 2026)
• SRC-0340 — 'Iolani Palace official site – History (Tier 1, owner_statement; retrieved June 2026)
• SRC-0341 — National Register of Historic Places Inventory-Nomination Form (NPS) (Tier 1, public_record; retrieved June 2026)
• SRC-0342 — NPS – Iolani Palace: A Hawaiian Place of History, Power, and Prestige (Tier 1, official_archive; retrieved June 2026)
• SRC-0343 — Honolulu Star-Advertiser – Five-0 Redux: Hawaii's iconic places (Tier 2, journalism; retrieved June 2026)
• SRC-0344 — Hawaii Five-O (1968 TV series) – Wikipedia (Tier 3, encyclopedia; retrieved June 2026)
• SRC-0479 — State of Hawaii, Department of Land and Natural Resources, Division of State Parks – 'Iolani Palace State Monument (Tier 1, official_archive; retrieved June 2026)
• SRC-3001 — PopMatters – Time Capsule of Our Culture: 1968's 'Hawaii Five-O' (Tier 2, news_article; retrieved June 2026)
• SRC-3442 — Wikipedia — ʻIolani Palace (Tier 2, reference; retrieved June 2026)
• SRC-3443 — Frock Flicks — TBT: Princess Kaiulani (2009) (Tier 2, reference; retrieved June 2026)
• SRC-3660 — hawaiitours.com (Tier 3, reference; retrieved June 2026)
• SRC-3685 — thesilversword.com (Tier 3, reference; retrieved June 2026)
• SRC-4201 — hollywoodreporter.com (Tier 2, journalism; retrieved June 2026)
• SRC-4737 — The Friends of 'Iolani Palace (iolanipalace.org) — official operator (Tier 1, official_operator; retrieved June 2026)
• SRC-4738 — Frommer's — 'Iolani Palace attraction guide (Tier 2, travel_guide; retrieved June 2026)
• SRC-5336 — Best of Oahu (Tier 3, blog; retrieved June 2026)
• SRC-5337 — Rob on Location (Tier 3, blog; retrieved June 2026)
• SRC-9561 — HomeyHawaii – Hawaii Five-0 Filming Locations (Tier 3, travel_guide; retrieved June 2026)
• SRC-9895 — The Fifty-O Homepage – Hawaii Five-O (1968-80) Season 1 Episode Reviews (Tier 2, reference_database; 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.

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Frequently asked questions

How is Iolani Palace connected to Hawaii Five-O?

Iolani Palace, in Honolulu, Hawaii, has a documented connection to Hawaii Five-O. Read the sourced facts on this page for the type of connection. Other associated screen titles include Princess Kaiulani.

How is Iolani Palace connected to Princess Kaiulani?

Iolani Palace, in Honolulu, Hawaii, has a documented connection to Princess Kaiulani. Read the sourced facts on this page for the type of connection. Other associated screen titles include Hawaii Five-O.

Can you visit Iolani Palace?

Yes — Iolani Palace is open to the public. Hours: Tue-Sat 9am-4pm; ticket office 8:30am-3:30pm. Admission: Self-led audio tour: Adult $26.95, Teen (13-17) $21.95, Youth (5-12) $11.95, ages 0-4 free. Guided docent tours and specialty tours also offered. Tickets online only..

Who designed Iolani Palace?

Iolani Palace was designed by Thomas J. Baker (with Charles J. Wall and Isaac Moore).

Where is Iolani Palace located?

Iolani Palace is located in Honolulu, Hawaii.