Hot on the heels of a collaboration with Koto, California-based Plant Prefab is teaming up with St. Paul–based Alchemy Architects to launch a new line of modular accessory dwelling units (ADUs).
The lightHouse LivingHomes will be available in five categories—small, medium, large, extra-large, and 2X—that range from 310 square feet to 600 square feet. These flexible ADUs are available with a dozen floor plan variations—from a compact studio to a one-bedroom that can be built above a two-car garage.
"Having worked together to build two prior homes in California, we’re confident that Plant Prefab is the right partner to bring our ADU designs to this market," says Geoffrey Warner, Principal Architect at Alchemy and weeHouse Founder. "The lightHouse is intended to be a beacon for sustainable living; Plant Prefab has built up its reputation around sustainable building practices."
Alchemy’s 15-plus years of experience with their prefab weeHouse line informed the design of the lightHouse, a flexible ADU that celebrates the motto "Luxury of Less."
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Every lightHouse comes with a standardized high-performance envelope with thermally broken elements, a low-energy mechanical core with storage and laundry, energy-efficient windows, and a fir plywood interior. Custom built-in oak furnishings and signature elements (such as the unique steel awning, steps, doorplate, and exterior beacon) are also part of the design. The units will be customizable as well.
While Alchemy weeHouses may be site-built or panelized, Plant Prefab–manufactured lightHouse LivingHomes will all be modular prefabs. The partnership presently allows Plant Prefab to deliver lightHouses built via modular construction to California, Arizona, and Nevada.
Per Plant Prefab’s standards, the lightHouse LivingHomes will also meet net-zero standards and ship complete with smart home technology and energy monitoring. All LivingHomes are built with the Plant Building System, a patented hybrid system for building prefabricated homes that’s estimated to reduce build times by at least 50% compared to traditional construction.
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