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In 2021, Daniel Lopez-Perez and Celine Vargas founded Polyhaus to build fire-resilient, prefabricated homes quickly and efficiently. Their first 540-square-foot Tetra-One ADU in La Jolla proved that advanced engineering and CLT panels could create beautiful, flexible, and compact spaces while reducing construction time and environmental impact.
In 2021, Daniel Lopez-Perez and Celine Vargas founded Polyhaus to build fire-resilient, prefabricated homes quickly and efficiently. Their first 540-square-foot Tetra-One ADU in La Jolla proved that advanced engineering and CLT panels could create beautiful, flexible, and compact spaces while reducing construction time and environmental impact.
"In the living area we designed a continuous skylight along the roof ridge,
"In the living area we designed a continuous skylight along the roof ridge,
<span style="font-family: Theinhardt, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen-Sans, Ubuntu, Cantarell, &quot;Helvetica Neue&quot;, sans-serif;">"Entering the house feels remarkably like stepping aboard a vessel,
<span style="font-family: Theinhardt, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Oxygen-Sans, Ubuntu, Cantarell, &quot;Helvetica Neue&quot;, sans-serif;">"Entering the house feels remarkably like stepping aboard a vessel,
Space saving solutions within the 235-square-foot cabins include custom furniture hacks like a fold-away dining table that conceals built-in shelving.
Space saving solutions within the 235-square-foot cabins include custom furniture hacks like a fold-away dining table that conceals built-in shelving.
“The house itself was prefabricated and assembled on-site in just 30 days,” Ohtake tells us. “This minimized waste, preserving the area’s flora and fauna.” He collaborated with Ricardo Cardim and Studio Teto Jardim to make the home appear as though it were nestled in the earth. This provided the added benefit of a thermally efficient interior that didn’t need an air conditioner.
“The house itself was prefabricated and assembled on-site in just 30 days,” Ohtake tells us. “This minimized waste, preserving the area’s flora and fauna.” He collaborated with Ricardo Cardim and Studio Teto Jardim to make the home appear as though it were nestled in the earth. This provided the added benefit of a thermally efficient interior that didn’t need an air conditioner.
Architect Matt Wittman’s upbringing in rural Washington nurtured a respect for functional buildings that worked with their surroundings: a utilitarian perspective that would inform his Seattle-based studio’s modular home system. “While prefab houses are sometimes divorced from their context, Puzzle Prefab can be modified according to each site,” Wittmann says. “This system has the ability to create spaces that can expand or contract for a variety of environments, whether remote, suburban, or urban.”Architect Matt Wittman’s upbringing in rural Washington nurtured a respect for functional buildings that worked with their surroundings: a utilitarian perspective that would inform his Seattle-based studio’s modular home system. “While prefab houses are sometimes divorced from their context, Puzzle Prefab can be modified according to each site,” Wittmann says. “This system has the ability to create spaces that can expand or contract for a variety of environments, whether remote, suburban, or urban.”Architect and Majamaja cofounder Pekka Littow designed a seaside retreat in Finland to showcase the potential of self-sustaining homes. The first cabin was built in 2020, and there are now four along the archipelago outside Helsinki. Prefabricated elements like vertical wood cladding and crisp gables allow the cabins to be dismounted with minimal impact on the landscape.
Architect Matt Wittman’s upbringing in rural Washington nurtured a respect for functional buildings that worked with their surroundings: a utilitarian perspective that would inform his Seattle-based studio’s modular home system. “While prefab houses are sometimes divorced from their context, Puzzle Prefab can be modified according to each site,” Wittmann says. “This system has the ability to create spaces that can expand or contract for a variety of environments, whether remote, suburban, or urban.”Architect Matt Wittman’s upbringing in rural Washington nurtured a respect for functional buildings that worked with their surroundings: a utilitarian perspective that would inform his Seattle-based studio’s modular home system. “While prefab houses are sometimes divorced from their context, Puzzle Prefab can be modified according to each site,” Wittmann says. “This system has the ability to create spaces that can expand or contract for a variety of environments, whether remote, suburban, or urban.”Architect and Majamaja cofounder Pekka Littow designed a seaside retreat in Finland to showcase the potential of self-sustaining homes. The first cabin was built in 2020, and there are now four along the archipelago outside Helsinki. Prefabricated elements like vertical wood cladding and crisp gables allow the cabins to be dismounted with minimal impact on the landscape.
The prefab design utilizes a pin foundation system that reduces the project’s carbon footprint by 77 percent, says Wittman.
The prefab design utilizes a pin foundation system that reduces the project’s carbon footprint by 77 percent, says Wittman.
The pilot home on Whidbey Island demonstrates the system’s potential: a 600-square-foot interior paired with nearly equal covered outdoor space, set lightly on a pin foundation that protects tree roots and cuts carbon by 77 percent. "Puzzle Prefab can be modified according to each site,
The pilot home on Whidbey Island demonstrates the system’s potential: a 600-square-foot interior paired with nearly equal covered outdoor space, set lightly on a pin foundation that protects tree roots and cuts carbon by 77 percent. "Puzzle Prefab can be modified according to each site,
Despite its wooded setting, the home is only 25 minutes from Philadelphia.
Despite its wooded setting, the home is only 25 minutes from Philadelphia.

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