Gillette Castle is an Arts and Crafts castle in East Haddam, Connecticut. Built in 1919, it was designed by William Gillette, and is listed on the U.S. National Register of Historic Places. It is owned by State of Connecticut.
Location: 67 River Road, East Haddam, Connecticut, United States
Verified facts
- Located in Seven Sisters hills, East Haddam, Connecticut
confidence 70/100 · 2 recorded source groups · SRC-0317, SRC-0318 - Designed by William Gillette
confidence 70/100 · 2 recorded source groups · SRC-0319, SRC-0318 - Built in 1919
confidence 90/100 · 4 recorded source groups · SRC-0319, SRC-0320, SRC-0466, SRC-0467 - Architectural style: Arts and Crafts
confidence 90/100 · 4 recorded source groups · SRC-0319, SRC-0320, SRC-0468, SRC-0469 - Historic designation: National Register of Historic Places (1986, ref. 86002103)
confidence 75/100 · 3 recorded source groups · SRC-0320, SRC-0318, SRC-2997 - Owned by State of Connecticut
confidence 85/100 · 3 recorded source groups · SRC-0317, SRC-0318, SRC-2998
Evidence & sources
- SRC-0317 — Connecticut State Parks (CT DEEP) (Tier 1, official_archive; retrieved June 2026)
- SRC-0318 — Connecticut Real Estate History (Tier 2, journalism; retrieved June 2026)
- SRC-0319 — Connecticut State Parks (CT DEEP) (Tier 1, official_archive; retrieved June 2026)
- SRC-0320 — Wikipedia (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0466 — Friends of Gillette Castle State Park — History of the Castle (Tier 2, institutional; retrieved June 2026)
- SRC-0467 — Historic Buildings of Connecticut — Gillette Castle (1919) (Tier 2, scholarship; retrieved June 2026)
- SRC-0468 — National Register of Historic Places Inventory–Nomination Form: Seventh Sister (Gillette Castle), prepared by Mary McCahon, NPS (1986) (Tier 1, official_archive; retrieved June 2026)
- SRC-0469 — Gillette Castle (official park visitor site) — History of the Castle (Tier 2, institutional; retrieved June 2026)
- SRC-2997 — National Park Service – National Register of Historic Places, NPGallery Asset Detail (Seventh Sister / Gillette Castle) (Tier 1, official_archive; retrieved June 2026)
- SRC-2998 — National Park Service – National Register of Historic Places Inventory-Nomination Form, Seventh Sister (Gillette Castle) (Tier 1, official_archive; retrieved June 2026)
- SRC-4733 — Connecticut Department of Energy and Environmental Protection (CT State Parks) (Tier 1, government_agency; retrieved June 2026)
- SRC-4734 — Atlas Obscura (Tier 2, travel_publication; 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.
Plan Your Visit
Hours: Grounds daily 8am-sunset. Castle tours daily Memorial Day-Labor Day, then weekends/holidays through Columbus Day, 10am-4pm (every 15 min); Holiday tours Fri-Sun Thanksgiving-Christmas
Admission: Castle interior: $6 age 13+, $2 ages 6-12, under 6 free; grounds and parking free
Frequently asked questions
Can you visit Gillette Castle?
Yes — Gillette Castle is open to the public. Hours: Grounds daily 8am-sunset. Castle tours daily Memorial Day-Labor Day, then weekends/holidays through Columbus Day, 10am-4pm (every 15 min); Holiday tours Fri-Sun Thanksgiving-Christmas. Admission: Castle interior: $6 age 13+, $2 ages 6-12, under 6 free; grounds and parking free.
Who designed Gillette Castle?
Gillette Castle was designed by William Gillette.
Where is Gillette Castle located?
Gillette Castle is located in East Haddam, Connecticut.