Modern 644 Square Foot ADU with 3-Car Garage

Plan 81807AB

  • 644

    Heated s.f.

  • 1

    Beds

  • 1

    Baths

  • 2

    Stories

  • 3

    Cars

  • This modern ADU house plan gives you a 644 square feet apartment set above a 3-car 990 square foot garage.
  • A 10' by 8' overhead garage door accesses the left bay which extends all the way to the back wall while a 18' by 8' overhead garage door opens for the 2-car bay. 
  • A sink and workbench line the back of the garage and there's storage under the stairs.
  • A man door on the back-right corner takes you to the apartment with a bed and bath on the right and a living room and kitchen open to each other on the left.

Plans include the following:

  • 4 elevations (Front, Rear, Left and Right)
  • Floor plans
  • Foundation plan
  • Cross section
  • Roof plan

We also include a list of building specifications, and notes for each page, with any important info the builder may need.


These items are NOT included:
  • Electrical plan
  • Architectural or Engineering Stamp - handled locally if required 
  • Site Plan - handled locally when required
  • Mechanical Drawings (location of heating and air equipment and duct work) - your subcontractors handle this
  • Plumbing Drawings (drawings showing the actual plumbing pipe sizes and locations) - your subcontractors handle this
  • Energy calculations - handled locally when required

NOTE:
If you want to purchase this plan in reverse, please select "readable reverse" or "mirror reverse" under Options above.
Modern 644 Square Foot ADU with 3-Car Garage - 81807AB floor plan - Main Level
NOTE:
If you want to purchase this plan in reverse, please select "readable reverse" or "mirror reverse" under Options above.
Modern 644 Square Foot ADU with 3-Car Garage - 81807AB floor plan - 2nd Floor

Special features

Plan Collections

Modern 644 Square Foot ADU with 3-Car Garage

  • 644

    Heated s.f.

  • 1

    Beds

  • 1

    Baths

  • 2

    Floors

  • 3

    Car garage

Floor Plan

  • Main Level

  • 2nd Floor

Plan Details

Square Footage Breakdown

  • Total: 644 sq. ft.
  • 2nd Floor: 644 sq. ft.

Dimensions

  • Width: 33' 0"
  • Depth: 30' 0"
  • Max ridge height: 20' 0"

Beds/Baths

  • Bedrooms: 1
  • Full bathrooms: 1

Garage

  • Type: Detached
  • Area: 990 sq. ft.
  • Count: 3 Cars
  • Entry Location: Front

Foundation Type

    • Standard Foundations: Slab

Exterior Walls

  • Standard Type(s): 2x6

Ceiling Heights

  • Floor / Height: First Floor / 9' 6" Second Floor / 8' 1"

Roof

  • Primary Pitch: 4.5 on 12
  • Framing Type: Truss
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Modern 644 Square Foot ADU with 3-Car Garage

  • 644

    Heated s.f.

  • 1

    Beds

  • 1

    Baths

  • 2

    Floors

  • 3

    Car garage

Modern 644 Square Foot ADU with 3-Car Garage

  • 644

    Heated s.f.

  • 1

    Beds

  • 1

    Baths

  • 2

    Floors

  • 3

    Car garage

Plan Details

Square Footage Breakdown

  • Total: 644 sq. ft.
  • 2nd Floor: 644 sq. ft.

Dimensions

  • Width: 33' 0"
  • Depth: 30' 0"
  • Max ridge height: 20' 0"

Beds/Baths

  • Bedrooms: 1
  • Full bathrooms: 1

Garage

  • Type: Detached
  • Area: 990 sq. ft.
  • Count: 3 Cars
  • Entry Location: Front

Foundation Type

    • Standard Foundations: Slab

Exterior Walls

  • Standard Type(s): 2x6

Ceiling Heights

  • Floor / Height: First Floor / 9' 6" Second Floor / 8' 1"

Roof

  • Primary Pitch: 4.5 on 12
  • Framing Type: Truss

    Main Level

    2nd Floor