Ranch Homes I Two Story Homes I Cape Cods I Multi-Family and Commercial I Tiny Homes I Custom Floor Plans
Modular Accessory Dwelling Units (ADUs) and tiny home floor plans generally range from compact 150 sq. ft. studios to more spacious 1,200 sq. ft. multi-bedroom units. These structures are often built in factory settings and then transported to a permanent foundation, making them indistinguishable from site-built homes once completed.
Common Floor Plan Configurations
Modular designs focus on maximizing efficiency through open layouts and shared utility spaces.
- Micro Units (150–250 sq. ft.): These are often used as simple guest suites or offices. They typically feature a one-wall galley kitchen and a compact bathroom.
- One-Bedroom ADUs (400–750 sq. ft.): The most popular choice for long-term living, these plans offer a private bedroom, full kitchen, and living area.
- Two-Bedroom Designs (700–1,200 sq. ft.): These accommodate small families or roommates, often featuring “split” floor plans where bedrooms are on opposite sides of the home for privacy.
- Loft Layouts: Many tiny home plans include a 200 sq. ft. standing or sleeping loft to preserve the living area’s footprint while adding vertical space.
Popular Modular ADU Models & Manufacturers
Several manufacturers offer pre-designed plans that can be further customized:
- Villa Homes: Offers a wide range of ADU products from 440 sq. ft. one-bedroom units to 1,200 sq. ft. three-bedroom homes.
- Clayton Studio: Features models like “
The Riverview
” (840 sq. ft.) and “
The Delight
” (820 sq. ft.), often starting in the $60,000 to $70,000 range.
- Goshen Tiny Homes: Specializes in modern ADU plans between 400 and 1,200 sq. ft., including popular models like the
B-563
.
- Nestron: Provides modern, smart ADU solutions that are fully furnished and relocatable.
- DEN Outdoors: Sells downloadable digital house plans for small ADUs and tiny houses, including unique A-frame and cabin styles.
Key Considerations for Planning
- Budgeting: Base model costs for modular units can range from $50 to $100 per sq. ft., but total finished costs including installation typically fall between $80 and $160 per sq. ft..
- Local Regulations: In Indiana, for example, detached ADUs must generally be between 220 and 800 sq. ft. and cannot exceed 50% of the main residence’s living space.
- Foundation Types: Unlike mobile homes, modular ADUs require a permanent foundation, such as a crawl space or poured slab.
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