Tri Century Mill Suites on McArthur Island
Welcome to Tri Century Mill Suites, a family owned, charming boutique hotel and residences in the heart of Carleton Place, Ontario. Blending small-town warmth with sophisticated comfort, our hotel and residences offers a serene retreat along the banks of the Mississippi River.
Thoughtfully Designed
Heritage Preserved, Comfort Perfected
Where Historic Character Meets Modern Luxury
Every suite at Tri Century Mill has been thoughtfully designed to maintain and preserve the heritage character of this historic mill. Original exposed brick walls, massive timber beams, and brand new windows crafted to match the original heritage look create an atmosphere of timeless elegance. Combined with brand new kitchens and modern amenities, our boutique hotel offers an intimate riverside retreat in a charming small-town setting—just a short drive from the city.
Amenities & Services
Everything You Need for a Perfect Stay
Full Kitchens & Kitchenettes
Prepare your own meals with fully equipped kitchens or convenient kitchenettes—a major advantage over traditional hotel stays.
Laundry
Coming Soon: Fitness Centre
Steps from Riverwalk Trail
Pet Friendly
Complimentary Wi-Fi
Explore Carleton Place
Small-Town Charm, Close to the City
Experience the best of both worlds—a peaceful riverside community with heritage character, just a short drive from Ottawa’s amenities and attractions.
Historic Downtown
Explore the charming streets of downtown Carleton Place with its unique shops, galleries, and small-town warmth—just minutes from Ottawa.
Local Cuisine
Riverside Trails
Heritage Suites
Stay in Historic Luxury
Each of our heritage suites combines the character of a restored 19th-century mill with brand new modern amenities.
Every heritage suite includes:
- Exposed brick walls and original timber beams
- Brand new heritage-style windows with river views
- Luxurious bedding and premium linens
- Brand new modern bathrooms
- Complimentary Wi-Fi and in-room coffee
Why "Tri Century"?
A landmark shaped across three eras:
19th Century
Original limestone mill
20th Century
Industrial expansion and brick additions
21st Century
Restored as a boutique hotel and residences
Heritage & Comfort
About Tri Century Mill Suites on McArthur Island
Located along the Mississippi River in the heart of Carleton Place, Ontario, Tri Century Mill Suites is a boutique hotel offering an unforgettable riverside retreat. Our restored heritage building combines three centuries of history with brand new modern amenities, creating a truly unique destination in a charming small-town community just a short drive from the city.
A Boutique Riverside Experience
Step into a beautifully restored heritage mill where every detail has been thoughtfully preserved. From the original limestone walls to the massive timber beams, and brand new windows designed to match the original heritage look—Tri Century Mill offers a one-of-a-kind stay that celebrates the past while embracing modern comfort.
Use Promo Code “FALL2026” when booking on our website and save 25% off stays from Sunday through Thursday.
This promotional code cannot be combined with any other offers. Book and stay from September 1st 2026 to November 2026.
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