About Us

Boutique comfort meets tropical Key West charm

About Tranquility Guest House

A Peaceful Retreat in the Heart of Key West

Tranquility Guest House is a proud member of the At Mine Hospitality portfolio, known for its collection of distinctive boutique properties across prime destinations. Rooted in a passion for comfort and authenticity, Tranquility Guest House was created to offer travelers a peaceful haven in the heart of Key West. Combining apartment-style accommodations with thoughtful amenities and warm hospitality, we provide guests with the perfect blend of relaxation, quality, and convenience — all just steps away from the island’s vibrant culture, dining, and entertainment.

Amenities & Services

Everything You Need for a Comfortable Stay

Pool with diving board and sun.

Year-Round Outdoor Pool

TV on a cabinet with two hanging circular lights.

Spacious Apartment Suites

Black map with a location marker.

Central Old Town Location

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Contactless Check-In & Check-Out

Outline of a vacuum cleaner.

Daily Housekeeping Service

Icon of a person inside a circle, with a checkmark, indicating accessibility.

Wheelchair Accessible Facilities

WiFi signal icon.

High-Speed Wi-Fi

Shield with a checkmark, symbolizing security and approval.

Enhanced Clean & Safe Stay

Couple holding hands by a window in a bright hotel room, with luggage.

Part of the At Mine

Hospitality Portfolio

Treehouse Hotel is proudly managed by At Mine Hospitality, a modern hospitality company reimagining the boutique hotel experience. With a focus on efficiency, transparency, and guest satisfaction, At Mine brings together unique properties across Miami and beyond — delivering consistent quality and memorable stays while keeping each hotel’s local charm.