Custom 2-Bedroom Prefab ADU in California | Turnkey Modular Steel Structure Home

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Modern prefab kitchen interior featuring dark grey matte cabinets, a marble-textured backsplash, stainless steel appliances, an island with LED strip lighting, and wooden flooring.
Premium turnkey kitchen design for our prefabricated modular homes and ADUs.
Interior rendering of a prefabricated modular home bedroom, featuring light wood panel walls, a wooden bed frame, a cozy patterned rug, and large windows with garden views.
Warm and inviting bedroom interior for our prefab ADU and cabin projects.
3D rendering of a modern prefab ADU in a US backyard, featuring a dark pitched roof, white siding, large black-framed windows, and a landscaped garden with a patio.
Modern single-story ADU with a dark pitched roof and custom landscaping.

This comprehensive case study showcases our Custom 2-Bedroom Prefab ADU (Accessory Dwelling Unit) specifically designed for the California, USA market. Measuring 70 square meters, this modern steel structure home features a highly popular layout: 2 bedrooms, 1 living room, 1 kitchen, and 1 bathroom. Engineered to meet strict US and California building codes, this ADU comes with full US-standard compliance certifications, ensuring a smooth approval and permitting process for legal, move-in-ready occupancy.

Project Highlights & B2B Advantages

  • Unbeatable Cost Savings: Compared to traditional US local construction, our factory-direct prefab solution saves up to 55% on overall project costs.
  • Ultra-Fast Deployment: 35 days of factory prefabrication + 28 days of sea freight to the US West Coast + 40 days of on-site assembly. Total project completion is significantly faster than traditional building methods.
  • Fully Compliant & Legal: Designed and manufactured to meet US and California local building codes, fully certified for legal rental or multi-generational living.
  • Turnkey Convenience: We provide integrated deep design, structural manufacturing, global shipping, and rapid on-site installation, ensuring a seamless and worry-free experience.

Design & Layout Features

  • Modern Farmhouse Exterior: Features a dark pitched roof and white siding, creating a stylish and welcoming curb appeal.
  • Efficient Interior Layout: 2 spacious bedrooms, a bright living area, a fully equipped kitchen, and a modern bathroom, maximizing the 70 sqm footprint.
  • Premium Turnkey Interiors: Includes high-quality wood flooring, custom cabinetry, modern appliances, and large windows for abundant natural light.
  • Robust Steel Structure: Built with high-strength galvanized steel frames, ensuring superior durability, seismic resistance, and long-term structural safety.

Get a Quote Today
Ready to build a legal, cost-effective ADU in your California backyard? Contact our US project team today with your site details for a free consultation, 3D design, and detailed quotation.