SOLASUNA Hotel by axonometric: Seamlessly Integrating Architecture with Nature

Architects: axonometric inc.

The SOLASUNA Hotel in Yukuhashi represents a bold reimagining of hospitality architecture, where built form and natural environment converge. Situated within a newly developed seaside park, the hotel is designed not as an isolated structure, but as an integrated extension of its surroundings, blurring the boundaries between park, architecture, and sea.

A monumental staircase extends over the hotel, seamlessly connecting the elevated park area to the shoreline below. This design transforms the building into a hybrid space, part park, part hotel, challenging traditional notions of public and private use. Visitors and guests alike experience a fluid transition between nature and architecture, emphasizing connection, accessibility, and environmental harmony.

Revitalizing Nagaihama: Context and Vision

Nagaihama, in the northeast of Fukuoka, was historically a vibrant fishing village that evolved into a scenic coastal destination lined with inns. Over time, however, the area experienced a period of decline. Recent development efforts, including a beach dedicated to sports and marine activities and the creation of a small seaside park, have revitalized the coastline, attracting both locals and tourists.

The client, a management company overseeing the seaside park, envisioned a resort hotel that could catalyze Nagaihama’s resurgence. The goal was to craft architecture that would mutually enhance the park’s value and the hotel’s experience, creating a destination that resonates with both nature and contemporary design.

Architecture as a Dialogue Between Nature and Design

The challenge was clear: how could a private hotel integrate gracefully within a public park while respecting the scale and beauty of the seaside environment? axonometric approached this by exploring sensitive architectural integration, designing a structure that complements rather than competes with the surrounding landscape.

The building’s façade louvers are multifunctional. They act as sunshades, shielding interiors from intense summer sunlight while maintaining comfortable indoor temperatures. These louvers also serve as part of the monumental staircase, guiding visitors through the hotel and into the park. Midway, terraces with planted trees provide natural cooling, improve thermal insulation, and contribute to CO2 reduction, merging sustainability with aesthetic form.

This approach emphasizes the hotel’s environmental consciousness without compromising its architectural identity, creating a space that is both functional and ecologically responsible.

A Seamless Visitor Experience

SOLASUNA Hotel encourages visitors to engage with the landscape, sea, and built environment simultaneously. The staircase terraces act as social spaces, observation points, and green retreats, offering unique vistas of Nagaihama’s rejuvenated coastline. Guests experience a fluid interplay between interior luxury and exterior natural beauty, making the hotel a destination in itself rather than just accommodation.

By bridging public and private realms, the project redefines the relationship between hospitality architecture and park landscapes, presenting an innovative model for seaside resort design.

Sustainable Design Highlights

• Monumental staircase: Connects park, hotel, and sea while creating social terraces.
• Façade louvers: Control solar heat gain and enhance energy efficiency.
• Green terraces: Improve thermal insulation, reduce CO2, and provide urban greenery.
• Integrated landscape design: Promotes environmental sensitivity and seamless visitor experience.