ADU Plan Store

Permit-Ready ADU Plans for California (Code-Compliant Designs)

Browse professionally engineered ADU plans designed to meet California building codes and pass permit review faster. Choose from studio to 2-bedroom layouts with complete drawing sets, structural calculations, and optional PE stamping.

Package contents vary by tier. Refer to individual plan listings for detailed inclusions.

Why Choose Our ADU Plans?

Our ADU plans are developed by engineering professionals with a focus on California code compliance, constructability, and permit approval efficiency. Each plan is structured to meet the requirements of the California Residential Code (CRC) and applicable local jurisdictions.

Designed for fast and predictable permit approval
Developed with real-world construction detailing (not conceptual plans)
Integrated architectural and structural coordination
Scalable packages from basic architectural sets to full engineering design
Optional calculation packages and PE-stamped structural drawings
Suitable for detached ADUs, backyard units, and garage conversions
Configurations optimized for cost efficiency and standard construction methods

What’s Included in Each ADU Plan?

Each plan includes a complete set of drawings and optional engineering packages to support permit approval and construction.

Architectural Set (Base)

Floor plans, elevations, sections
Dimensions, doors/windows, schedules
General notes and title sheets

Structural Set (Optional)

Framing plans and shear wall layouts
Structural details and notes
Calculations (gravity + lateral per CRC/ASCE 7)

Foundation Design (Optional)

Foundation plans, sections, and anchorage
Slab or crawl space design

Permit Support (Optional)

PE stamp and signed calculations
Plan check responses and revisions

Additional Options

CAD (DWG) files
Customization and site-specific engineering

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