KAI Water Culture House by Kengo Kuma & Associates in Copenhagen






Copenhagen's New Waterfront Icon: A Fusion of Water, Culture, and Architecture
The Visionary Design and Collaborative Effort Behind KAI Water Culture House
The KAI Water Culture House, a sprawling 5,800 square meter facility situated on Papirøen (Paper Island) in Copenhagen, Denmark, is the result of a significant collaboration. Kengo Kuma & Associates led the design, working closely with Cornelius Vöge Atelier for Architecture and Vilhelm Lauritzen Architects. This partnership aimed to create a landmark that integrates water-based activities with cultural programming, contributing to Copenhagen's ongoing revitalization of its harbor area.
Architectural Features: Brick Towers and Glazed Foundations
A striking aspect of the KAI Water Culture House is its architectural composition. The structure features five distinctive brick towers that rise above a transparent, glazed base. These towers are artfully shaped to complement the pool areas below, creating dynamic interior environments and an engaging roofline. Approximately 300,000 handmade bricks were utilized in their construction, providing a textural contrast to the expansive glass elements. The glazed lower level is designed to maximize natural light entry and offer panoramic views of the Copenhagen Harbour, seamlessly connecting the building's interior with its picturesque surroundings.
Diverse Aquatic Offerings and Wellness Amenities
The facility is designed to cater to a wide range of aquatic and wellness needs. It boasts a total of ten indoor and outdoor pools, each serving a specific purpose. Highlights include the Valley Pool, an outdoor swimming area nestled between the towers on the first floor, offering an open-air swimming experience. Adjacent to this is an outdoor onsen pool, providing a unique vantage point overlooking the harbor. Inside, the ground floor features a 25-meter fitness pool, a teaching pool, and three children's play pools. The first floor further enhances the wellness experience with a therapy pool, a hot pool, a cold plunge pool, and the aforementioned outdoor pools. Additionally, three saunas, a steam bath, and a heated stone area are incorporated into the design, promising a comprehensive relaxation and rejuvenation experience.
Expanding Public Access to the Waterfront: Outdoor Swimming Zones
Beyond the main building, plans are in place to extend public interaction with the harbor. Designated swimming and dipping zones will be established along a new timber boardwalk, offering direct access to the water with views of the Royal Danish Playhouse and Opera Park. These outdoor harbor-bathing facilities are scheduled to become operational in early 2027, complementing the initial opening of the KAI Water Culture House and further enriching Copenhagen's urban waterscape.
The Journey from Concept to Construction: A Collaborative Vision
The genesis of this ambitious project dates back to 2015, when the City of Copenhagen invited residents to propose ideas for a new cultural and leisure hub on Paper Island. The overwhelming response, which included 160 submissions, underscored the community's desire for a swimming facility that also fostered relaxation and social engagement. This led to an international architectural competition in spring 2017, ultimately won by Kengo Kuma & Associates. The project's development was a testament to collaboration, with Cornelius Vöge Atelier for Architecture contributing during the concept design phase, and Vilhelm Lauritzen Architects serving as executive architects through to completion. Supported by the Paper Island Water Culture House Foundation and the Nordea Foundation, KAI represents a pivotal component in Copenhagen's broader strategy to transform its harbor into a vibrant center for public recreation and cultural activities.
Copenhagen's Architectural Renaissance: A City Focused on Public Life
The KAI Water Culture House project aligns with Copenhagen's ongoing commitment to enhancing public spaces and fostering a strong connection between its inhabitants and the urban environment. The city's dedication to quality of life is evident in its consistent recognition, having been named the world's most liveable city for two consecutive years in the 2026 Global Liveability Index. This architectural endeavor further solidifies Copenhagen's reputation as a leader in innovative urban development, emphasizing sustainable design and community-focused infrastructure. The city is also preparing to host the second Copenhagen Architecture Biennial from September 9 to October 15, 2027, under the theme "Elements," exploring architecture's relationship with fundamental natural forces. Parallel to these developments, Danish firm AART recently won a competition to design Rigets Skatkammer (The Royal Treasury), a 1,300 square meter underground expansion for Rosenborg Castle, which will also restore a portion of the historic moat, further illustrating the city's holistic approach to preserving heritage while embracing modernity.