Portrait of a man in an office environment, featuring sleek furnishings and abundant greenery, highlighting balanced architectural design elements.

Josiah Cain

Principal, Managing Principal, Bainbridge Island

Josiah’s work lies at the intersection of innovation and sustainability, and he has operated at the forefront of the landscape and urban design industry for over 25 years. Focusing on the integration of design, ecology, and infrastructure, his practice leverages landscape urbanism with macro-systems thinking across municipal districts, hospitality, healthcare, commercial, and academic campus planning scales.

As managing principal of our Bainbridge studio, Josiah oversees large-scale and high-profile projects, team organization, and business growth. He collaborates closely with the firm’s Living Design experts to ensure coordination across studios and promote regenerative design principles in practice.

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Areas of Focus

Josiah is passionate about regenerative land use and he is a recognized expert in urban water management, green roof systems, and living design dynamics including urban heat, air quality, water quality, drought, fire, and flooding. He is a regular presenter and prominent voice on topics ranging from stormwater management and sea-level rise to human health, wellness, wastewater, and water supply.

Speaker presenting in a formal setting, with a focus on architectural design concepts, while panelists listen intently in the background.
SPUR Group Panel on Water Reuse in Silicon Valley
Josiah was named a top water innovator in the State of California, and has been published in Sunset Magazine, Water Infrastructure Journal, and the New York Times.
Group of six people in front of a green-roofed, domed structure with circular skylights, surrounded by wildflowers and grass.
California Academy of Sciences Living Roof
An expert in green roofs, Josiah has designed and delivered over 1 million square feet of landscape on structure.
Three scuba divers in wetsuits stand on a sandy beach, ready to explore the ocean's depths, with calm water and distant hills in the background.
Outside the studio
In his free time, Josiah enjoys spending as much time in nature as possible, from diving and hiking to winter sports in the mountains.

Related Work

Our Bainbridge Island Studio interior of the studio's dining room, with a group of people and a dog gathered around
Work
Our Bainbridge Island Studio
Bainbridge Island, Washington
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