1100 sqft Kullman Frame System Modular House, Michigan

Floor plans
About Garrison Architects

ArchitectureGarrison Architects
ProjectKoby Cottage
Area1,100 sqft
LocationAlbion, MI, United States

This 1100 sqft modular house design is composed of two intersecting diagonal axes centered around social area - dining room as a meeting place. One axis incorporates the bedrooms, the other axis includes the living room and public entry hall. The design consists of two modules and uses new modular technology - Kullman Frame System (KFS), which allows build modular homes of prefabricated steel hollow tube frames. This prefabricated system has capacity to achieve 12 stories height and uses patented connection technology that speeds the overall construction process and minimizes field finishing.

Description by architects

Koby Cottage was designed to accommodate families visiting their children attending a boarding school for troubled teens. Surrounded by nature, it provides a peaceful, private domestic setting for reuniting families.

The eleven hundred square foot cottage has an X-shaped plan formed by joining two prefabricated steel modules. One wing is for parents, the other for their child. A dining table is situated where the two wings cross to create a place for meeting, discussion and to express family bonds. The structure is raised above the ground and the space between the modules is sheathed with glass to show the landscape as continuous and nature as enveloping.

Koby is a prototype constructed using the KFS (Kullman Frame System), an extremely strong and efficient modular space frame consisting of hollow tubular steel that allows for large cantilevers and window openings. The structural system was developed for the construction of multi-story modular buildings. Its tubular steel space frame has the unique capacity to achieve heights of twelve stories using patented connections that minimize field finishing and speed the overall construction process. The cottage features a high level of craftsmanship and detail as well as number of high performance components.

Floor plans


  1. High-velocity ducted heating/AC system with heat exchange ventilator
  2. Cor-ten steel rainscreen cladding allows walls to breathe to resist water
  3. Banquette with removable bolsters, seats 8, sleeps 3
  4. Tongue & groove FSC-certified pre-finished maple
  5. Tongue & groove FSC-certified pre-finished maple floor
  6. Non-polluting alcohol burning fireplace
  7. Recycled porcelain floor
  8. Roof with optional thin film photovoltaics
  9. Smart moisture retarder taped at all seams and openings, breathes in warm weather
  10. Foamed-in-Place Insulation
  11. Continuous Insulation
  12. Welded tubular steel frame with high recycled content
  13. Integrated writing desk
  14. Insulated maple, cedar and stainless steel window system
  15. Integrated roller-blinds
  16. High performace glass


Modular house Koby Cottage has been completed in the Kullman factory in Lebanon, NJ

About Garrison Architects

We feel that well designed environments support social cohesion, balance human activity with nature, and intensify our experience of the world around us. Founded on the modernist legacy of design clarity and technical innovation, our work seeks to take advantage of new materials and evolving technologies to meet the challenges of today, including global warming, scarce resources, and rapid development.

Our approach is pragmatic. We work with the best means available to overcome the constraints of each project. Far from being a limitation, these constraints ground our work in real needs and spur research into innovative building techniques. Collaboration plays a fundamental role in this research. Within our walls, talented professionals and staff combine skills and experience to envision and produce sophisticated architecture. Beyond, we work closely with the world’s most accomplished engineers, artists, planners, technicians and manufacturers to build projects as varied as hurricane resilient beach structures and historic urban plazas.

Whether serving public or private clients, we design with an awareness of greater demands. Our goal is to create architecture that balances competing cultural and environmental forces, such as globalization and local tradition, ecological harmony and land development, and affordability and demand. Since 1991, Garrison Architects has pursued modular construction to solve the problems of sustainability, affordability and rapid growth. Its strengths are inherent material efficiency, economy of scale and built-in quality control. In our hands it has proved a powerful method for making humane, technologically advanced buildings that transcend mere shelter, on the one hand, and pure form or style on the other.

Address45 Main St, Brooklyn, NY 11201, United States

1100 sqft Kullman Frame System Modular House, Michigan