The BOSS Two Bed Basic is a 750 sq ft two-bedroom prefab ADU (accessory dwelling unit) built in California by BOSS Homes — a modern, code-ready backyard home ideal as a rental unit, guest house, multigenerational living space, or independent home for family. Its 26’ × 30’ footprint and 11’6” overall height create a comfortable two-bedroom layout, while precision-engineered light-gauge steel framing delivers exceptional structural strength and low-maintenance durability. The Two Bed Basic ships on standard pallets — no cranes or oversized transport — and most projects move from order to move-in in roughly 4 to 9 months. Like every BOSS model, the Two Bed Basic is engineered to meet both the International Building Code (IBC) and California Building Code (CBC), so it is permittable as a backyard ADU or granny flat across California — including Los Angeles, San Diego, San José, and more. Explore the full prefab ADU guide or browse all 8 BOSS models. Price does not include installation or permitting. Features 750 sq ft modern two-bedroom backyard ADU — perfect for family living, rental income, or multigenerational housing Spacious 26’ × 30’ footprint with an 11’6” overall height for an open, comfortable layout Precision-engineered light-gauge steel framing for long-lasting structural strength Premium galvanized steel roof in corrugated or standing-seam profiles for superior weather protection Energy-efficient PIR insulation — Roof R-28 and Walls R-42 (4” insulation) Weatherproof interlocking wall panels with steel studs for maximum durability in any climate Fire-safe construction with FM-approved Class 1 materials and self-extinguishing insulation Modern black aluminum windows & doors with double-pane glass Customizable window & door placement tailored to your design preferences Standard interior package included — interior doors & hardware, cabinetry, finish flooring, paint, and electrical & plumbing fixtures Mini-split A/C system included for year-round comfort Meets International & California Building Codes for permitting confidence Eco-friendly materials made with 35% recycled post-consumer content Backed by a 10-year structural warranty Tech Specs Square footage: 750 total sq ft Unit footprint: 26’ × 30’ Unit height: 11’6” Bedrooms: 2 Structure: precision-engineered light-gauge steel framing Roof: painted galvanized steel, corrugated or standing-seam profile Doors & windows: black aluminum frame with double-pane glass; medium window 28″ × 42″, large window 28″ × 64″, entry door 36″ × 80″ (locations customizable) Interior ceiling height: 8’0” – 10’6” Standard interior package: interior doors & hardware, cabinetry, mini-split A/C, electrical & plumbing fixtures, finish flooring, and paint (kitchen appliances excluded)
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