Koto’s Niwa Cabins: The UK’s Flatpack Tiny Homes Make Their U.S. Debut

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In a significant development for sustainable architecture, UK-based design studio Koto has introduced its Niwa collection of flatpack modular cabins to the United States. These cabins, blending Scandinavian minimalism with Japanese-inspired craftsmanship, are now available across the U.S., offering a new dimension to the tiny home and accessory dwelling unit (ADU) market.​

all photos – Koto

Founded in 2017 by architects Johnathon and Zoë Little, along with designer Theo Dales, Koto was born from a desire to create spaces that harmonize with nature. The term “Koto” is derived from old Finnish, loosely translating to “cozy at home.” The Niwa cabins exemplify this ethos, featuring sustainably sourced timber structures and Shou Sugi Ban cladding—a traditional Japanese technique that chars wood to enhance durability and fire resistance.

The Niwa collection offers four sizes to accommodate various needs:

  • Small (67 sq ft): Ideal for saunas or compact studios.
  • Medium (135 sq ft): Suitable for studios, saunas, or single-room sleep cabins.
  • Large (269 sq ft): Spacious enough for studios or fully self-contained accommodation cabins.
  • XL (403 sq ft): Designed for gyms or larger self-contained accommodation cabins. ​

Each cabin arrives in panelized form, facilitating efficient shipping and on-site assembly. This design allows for customization, enabling clients to tailor interiors with finishes like oak or birch plywood and select from optional furniture packages curated by Koto’s interior design team. ​

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Koto’s commitment to sustainability is evident in every aspect of the Niwa cabins. Constructed with FSC-certified timber and designed for energy efficiency, these cabins are suitable for both on-grid and off-grid living. Their modular nature ensures minimal environmental impact during installation, making them an attractive option for eco-conscious consumers. ​

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The Niwa cabins have already made their mark in the U.S., with installations in Massachusetts and plans underway for Los Angeles. Prices start at approximately $52,000, with additional costs for shipping, design licenses, and optional features. Delivery typically takes 8–12 weeks, followed by a 2–4 week shipping period, and installation ranges from 4 to 14 days. ​

Koto’s expansion into the U.S. signifies a growing interest in sustainable, design-forward living solutions. By offering customizable, eco-friendly cabins that can be delivered and assembled with ease, Koto is poised to influence the future of modular architecture in the American market.​

For more information on Koto’s Niwa cabins, visit their official website: Koto Design.

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Gary Fleisher, The Modcoach, writes about the modular and offsite construction industry at Modular Home Source.

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