Floors: 1 | Bedrooms: 1 | Bathrooms: 1 Dimensions: â—Ź Width: 20 ft | â—Ź Height: 19 ft 3 in | â—Ź Depth: 20 ft
Build your perfect tiny home, ADU, or cozy guest cottage with this beautifully designed 400 sq. ft. Garage House Plan! Designed for simplicity, affordability, and flexibility, this compact 1-bedroom, 1-bath layout is ideal for backyard rental units, vacation cabins, studio living, or garage conversions. With a clear, professional drawing set, it's ready to make your small-space dream a reality.
>>This plan is customizable — message us for modifications >>Digital PDF delivery — print-ready and easy to use!
Key Features: - Total Living Area: 400 sq. ft. (ANSI Z765 standard measurement) - Floors: Single-story design with efficient, accessible layout - Bedroom: 1 cozy bedroom with closet space - Bathroom: 1 full bath with modern layout - Open Living Space: Bright living room (approx. 9'5" x 12'8") connecting seamlessly to kitchen and dining - Kitchen: Compact 9'5" x 6'6" kitchen with washer/dryer nook - Compact Footprint: Square 20'x20' plan is easy to site on tight lots or convert from garage foundations - DIY-Friendly: Clear wall, roof, framing, and load-bearing details make construction approachable - Versatile Use: Perfect for ADUs, backyard guest houses, rentals, studio apartments, or vacation cabins
The Comprehensive Drawing Set Includes: - Ground Floor Plan - Loft Plan (if applicable) - Slab Plan Layout Showing Load Bearing Wall - Sections in Floor Plan - Ceiling Outline - Roof Outline - Section A-A’ - Section B-B’ - East Elevation - West Elevation - North Elevation - South Elevation - Toilet Details - Kitchen Details - Rafter Details - Wall Details - Wall and Window Details - Exterior Wall Foundation Details - Door & Window Schedule - Framing Details - Electrical Plan - Plumbing Layout - Material Details
Estimated Build Cost: Approximately $40,000–$65,000 USD, depending on location, materials, and DIY vs. contractor labor. (Excludes appliances, windows/doors, and interior finishes.)
Why Builders Love This Tiny House Plan: - Ultra-efficient 400 sq. ft. footprint reduces costs - Perfect for ADU requirements in many regions - Smart, open-concept living/kitchen maximizes usability - Includes clear, professional plans for a smoother build process - Great option for rental income, guest space, or simple living
Important Notes: - Digital Download Only — No Physical Item Shipped - Plans may need to be engineered to meet your local building code requirements. Always check with your local building department before purchase. - Some regions require an architect’s or engineer’s review and seal. - For Personal Use Only — Not for Commercial Redistribution
##Custom Modifications Available — Message Us for a Quote!
Bring your tiny house vision to life today with this easy-to-follow, builder-friendly plan from Home Plan DIY.
