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ADU House Plans

ADU House Plans

An accessory dwelling unit (ADU) is a lterm for a secondary house or apartment that shares the building lot of a larger, primary house. These take many forms - small cottages, carriage houses, small homes - and come in all kinds of styles. Ready when you are! Which ADU house plan do YOU want to build. 

374 plans found!

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Plan 51886HZ
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  • 960

    Sq. Ft.

  • 2

    Bed

  • 1

    Bath

  • 30' 0"

    Width

  • 48' 0"

    Depth

Plan 50213PH
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  • 572

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 26' 0"

    Width

  • 26' 0"

    Depth

Plan 62322DJ
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  • 767

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 44' 0"

    Width

  • 35' 0"

    Depth

Plan 24391TW
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  • 793

    Sq. Ft.

  • 1 - 2

    Bed

  • 1

    Bath

  • 28' 0"

    Width

  • 39' 8"

    Depth

Plan 765010TWN
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  • 650

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 32' 0"

    Width

  • 25' 0"

    Depth

Plan 67800MG
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  • 988

    Sq. Ft.

  • 2

    Bed

  • 2

    Bath

  • 38' 0"

    Width

  • 32' 0"

    Depth

Plan 36057DK
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  • 1,212

    Sq. Ft.

  • 1

    Bed

  • 1.5

    Bath

  • 44' 6"

    Width

  • 42' 0"

    Depth

Plan 270022AF
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  • 909

    Sq. Ft.

  • 2

    Bed

  • 1

    Bath

  • 26' 0"

    Width

  • 39' 3"

    Depth

Plan 25419TF
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  • 708

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 39' 11"

    Width

  • 21' 6"

    Depth

Plan 765033TWN
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  • 1,085

    Sq. Ft.

  • 2

    Bed

  • 1+

    Bath

  • 36' 7"

    Width

  • 32' 0"

    Depth

Plan 360076DK
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  • 1,315

    Sq. Ft.

  • 2

    Bed

  • 1.5

    Bath

  • 44' 0"

    Width

  • 30' 0"

    Depth

Plan 430815SNG
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  • 800

    Sq. Ft.

  • 2

    Bed

  • 2

    Bath

  • 22' 0"

    Width

  • 28' 0"

    Depth

Plan 765018TWN
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  • 650

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 32' 0"

    Width

  • 25' 0"

    Depth

Plan 62837DJ
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  • 1,604

    Sq. Ft.

  • 2

    Bed

  • 1.5

    Bath

  • 54' 0"

    Width

  • 50' 0"

    Depth

Plan 50201PH
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  • 484

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 22' 0"

    Width

  • 22' 0"

    Depth

Plan 360063DK
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  • 1,221

    Sq. Ft.

  • 2

    Bed

  • 2.5

    Bath

  • 42' 6"

    Width

  • 30' 0"

    Depth

Plan 51866HZ
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  • 732

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 24' 0"

    Width

  • 41' 0"

    Depth

Plan 62335DJ
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  • 765

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 42' 0"

    Width

  • 32' 0"

    Depth

Plan 510177WDY
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  • 650

    Sq. Ft.

  • 2

    Bed

  • 1

    Bath

  • 48' 0"

    Width

  • 24' 0"

    Depth

Plan 430813SNG
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  • 750

    Sq. Ft.

  • 2

    Bed

  • 2

    Bath

  • 24' 0"

    Width

  • 30' 0"

    Depth

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Plan Type
  • Single Family Home 279
  • Garage 90
  • Multiple Family Home 0
  • Other (sheds, pool houses, offices) Other (sheds, offices...) 5
Beds
  • 1 233
  • 2 107
  • 3 10
  • 4 6
  • 5+ 17
Baths
  • 1 315
  • 2 41
  • 3 5
  • 4 9
  • 5+ 10
Half Baths
  • 1 59
  • 2 1
  • 3 0
  • 4 0
  • 5+ 0
Floors
  • 1 199
  • 2 170
  • 3 5
Foundation
  • Basement 64
  • Combo Basement-Crawl 0
  • Combo Slab-Crawl 1
  • Crawl 143
  • Daylight 26
  • Joist 0
  • Monolithic Slab 9
  • Pier 4
  • Piling 4
  • Post/Beam 2
  • Post Frame 0
  • Post/Pier 0
  • Raise Island 0
  • Slab 313
  • Stem Wall 3
  • Unknown 0
  • Walkout 43
Exterior Walls
  • Block / CMU (main floor)
    6
  • 2x4 169
  • 2x6 300
  • ICF 1
  • SIP 0
  • 2x4 and 2x6 3
  • Log 0
  • Unknown 0
Garage Type
  • Attached 46
  • Detached 93
  • Carport 5
  • Drive Under 16
  • RV Garage 10
  • None 186
Garage Location
  • Front 147
  • Side 22
  • Rear 5
  • Courtyard 3
Number of Vehicles
  • 1 18
  • 2 99
  • 3 46
  • 4 9
  • 5+ 3
Special Features
  • Angled Garage 1
  • Bedrooms - Clustered 17
  • Bedrooms - Split 2
  • Bonus Room 10
  • Butler Walk-in Pantry 24
  • Courtyard 0
  • Den-Office-Library-Study 27
  • Elevator 4
  • Handicapped Accessible 7
  • Home Office 25
  • In-Law Suite 16
  • Jack & Jill Bath 5
  • Laundry Access from Master Suite 11
  • Laundry - Lower Level 1
  • Laundry - Upstairs 63
  • Loft 32
  • Master Suite - 1st Floor 207
  • Master Suite - 2nd Floor 136
  • Master Suite - Lower Level 2
  • Master Suite - Sitting Area 3
  • Media-Game-Home Theater 10
  • Mudroom 15
  • Multiple Stairs 0
  • Porte Cochere 0
  • Safe Room 0
  • Split Level 0
  • Sport Court 0
  • Sunroom 0
  • Two Master Suites 1
  • Two Story Great Room 27
  • Wrap Around Porch 8
Styles
  • Acadian 0
  • Adobe 0
  • A-Frame 0
  • Barndominium 8
  • Beach 16
  • Bungalow 9
  • Cape Cod 1
  • Carriage 131
  • Coastal 16
  • Colonial 2
  • Contemporary 43
  • Cottage 172
  • Country 136
  • Craftsman 70
  • European 8
  • Farmhouse 15
  • Florida 2
  • French Country 0
  • Georgian 0
  • Hill Country 2
  • Log 1
  • Low Country 1
  • Mediterranean 3
  • Mid Century Modern 13
  • Modern 39
  • Modern Farmhouse 7
  • Mountain 40
  • New American 22
  • Northwest 37
  • Prairie 5
  • Ranch 13
  • Rustic 24
  • Shingle 6
  • Southern 21
  • Southern Traditional 1
  • Southwest 0
  • Spanish 0
  • Traditional 58
  • Transitional 1
  • Tudor 1
  • Tuscan 0
  • Vacation 152
  • Victorian 1
Collections
  • 100 Most Popular 1
  • ADU 374
  • Affordable 16
  • Canadian 51
  • Client Photos 11
  • Energy Efficient 0
  • Exclusive 58
  • Home Office Studio 4
  • House Plan Videos 8
  • Large 12
  • Luxury 2
  • Materials List 241
  • Metric 22
  • Multi-Family Home 0
  • Multi-generational 7
  • New 20
  • Photo Gallery 30
  • Pole Barns and Post Frame 0
  • Pool House 17
  • Premium Collection 0
  • Recently Sold 224
  • Shed 0
  • Small 345
  • Sunroom 0
  • Tiny House 152
  • USDA Approved 3
Lot Features
  • Narrow Lot 343
  • Sloping Lot - Front/Up 3
  • Sloping Lot - Rear 2
  • Sloping Lot - Side 1
  • Sloping Lot 9
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Block / CMU (main floor)

Most concrete block (CMU) homes have 2 x 4 or 2 x 6 exterior walls on the 2nd story.