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Business Details
34 Years
experience
Innovative Sustainable Architecture in Saint Paul
Founded in 1992, Alchemy Architects has established itself as a leader in innovative architectural design. Our hands-on approach combines playful creativity with collaborative client relationships, prioritizing sustainable building strategies that minimize waste through recycling and reuse. With decades of experience, we specialize in efficient building methods, including our nationally recognized weeHouse system, which redefines modern living through prefab modular and site-built solutions. Our multidisciplinary team draws inspiration from art, literature, and environmental stewardship to deliver functional, aesthetically modern spaces tailored to diverse client needs.

As a firm, we emphasize transparency, open communication, and a commitment to making high-quality design accessible and affordable. Our process, refined over 30 years, ensures projects align with client visions while adhering to rigorous environmental standards. By integrating low-tech passive solar principles with high-tech renewable energy systems, we create spaces that are both innovative and enduring. Our dedication to excellence has earned us international recognition, reflecting our mission to transform ordinary spaces into extraordinary solutions.
Services
Architectural Design Sustainable Building Prefab Modular Homes Custom Residential Projects Construction Administration Accessory Dwelling Units Commercial Architecture Site-Built Structures Panelized Construction Renovation Services
Details
  • Year established: 1992
Highlights and features
  • We have over 30 years of experience in sustainable architectural design.
  • Our patented weeHouse system offers innovative prefab and modular solutions.
  • We prioritize client collaboration throughout every project phase.
  • Our team is certified by the American Institute of Architects (AIA).
  • We integrate renewable energy technologies with passive solar design principles.
Associations and certifications
  • American Institute of Architects
Services
Architectural Design
Our architectural design process emphasizes collaboration, sustainability, and modern aesthetics. We create tailored solutions for residential and commercial projects, integrating eco-friendly materials and energy-efficient systems. Clients benefit from our 30+ years of expertise in delivering functional, visually striking spaces that align with their unique needs and site conditions.
Prefab Modular Homes
The weeHouse system offers innovative prefab modular homes designed for efficiency and sustainability. These structures combine off-site fabrication with on-site assembly, reducing construction time and waste. Ideal for cabins, ADUs, or primary residences, our prefab solutions maintain high design standards while adapting to diverse climates and budgets.
Sustainable Building
Sustainable building practices are central to our philosophy. We prioritize recycling, reuse, and renewable energy integration to minimize environmental impact. Our designs leverage passive solar principles and modern technology to create energy-efficient spaces that meet rigorous environmental standards without compromising aesthetics or functionality.
Construction Administration
We oversee construction projects from start to finish, ensuring alignment with design specifications and budgets. Our team coordinates with builders, engineers, and contractors to address challenges and maintain quality. This phase guarantees efficient execution, adherence to timelines, and seamless transition to occupancy.
Accessory Dwelling Units
Our lightHouse ADUs provide compact, sustainable living spaces designed for flexibility and modern comfort. These units can be built using modular, panelized, or site-built methods, adapting to urban or rural settings. They offer affordable, eco-conscious solutions for expanding living space or creating rental income opportunities.
People
Geoffrey C. Warner
Founder
Geoffrey Warner, FAIA, founded Alchemy Architects in 1992 after gaining experience in traditional architectural firms and on-site construction. He pioneered the weeHouse system, blending modern design with sustainable practices to create innovative, accessible architecture recognized nationally and internationally.
Questions
What services does Alchemy Architects offer?
We provide architectural design for custom homes, commercial projects, ADUs, and prefab modular systems like the weeHouse. Our services include site visits, feasibility studies, construction documents, and project administration.
Do you work outside the United States?
While based in Saint Paul, MN, we primarily serve clients across the continental U.S. and Canada through partnerships with local builders and contractors.
How much does a weeHouse cost?
Costs vary by size, location, and build method. Our fees start at 15% of the project budget for new builds. Contact us for a detailed estimate based on your specific needs.
What sustainable practices do you use?
We prioritize waste reduction, recycling, passive solar design, and renewable energy integration. Our projects emphasize efficient material use and environmental stewardship throughout the building process.
How long does the design process take?
Residential projects typically take 16-30 months, depending on complexity and permitting requirements. Modular builds may reduce timelines, while custom designs require additional planning and collaboration.