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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. 

497 plans found!

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Plan 62322DJ
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  • 767

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 44' 0"

    Width

  • 35' 0"

    Depth

Plan 51886HZ
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  • 960

    Sq. Ft.

  • 2

    Bed

  • 1

    Bath

  • 30' 0"

    Width

  • 48' 0"

    Depth

Plan 765010TWN
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  • 650

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 32' 0"

    Width

  • 25' 0"

    Depth

Plan 24391TW
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  • 793

    Sq. Ft.

  • 1 - 2

    Bed

  • 1

    Bath

  • 28' 0"

    Width

  • 39' 8"

    Depth

Plan 50213PH
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  • 572

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 26' 0"

    Width

  • 26' 0"

    Depth

Plan 44200TD
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  • 499

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 23' 0"

    Width

  • 30' 0"

    Depth

Plan 360076DK
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  • 1,315

    Sq. Ft.

  • 2

    Bed

  • 1.5

    Bath

  • 44' 0"

    Width

  • 30' 0"

    Depth

Plan 25781GE
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  • 650

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 29' 0"

    Width

  • 33' 0"

    Depth

Plan 36057DK
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  • 1,212

    Sq. Ft.

  • 1

    Bed

  • 1.5

    Bath

  • 44' 6"

    Width

  • 42' 0"

    Depth

Plan 25419TF
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  • 708

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 39' 11"

    Width

  • 21' 6"

    Depth

Plan 67800MG
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  • 988

    Sq. Ft.

  • 1 - 2

    Bed

  • 2

    Bath

  • 38' 0"

    Width

  • 32' 0"

    Depth

Plan 270022AF
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  • 909

    Sq. Ft.

  • 2

    Bed

  • 1

    Bath

  • 26' 0"

    Width

  • 39' 3"

    Depth

Plan 62766DJ
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  • 774

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 45' 0"

    Width

  • 30' 0"

    Depth

Plan 50201PH
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  • 484

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 22' 0"

    Width

  • 22' 0"

    Depth

Plan 62335DJ
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  • 765

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 42' 0"

    Width

  • 32' 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 765033TWN
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  • 1,085

    Sq. Ft.

  • 2

    Bed

  • 1+

    Bath

  • 36' 7"

    Width

  • 32' 0"

    Depth

Plan 62382DJ
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  • 915

    Sq. Ft.

  • 2

    Bed

  • 1

    Bath

  • 28' 0"

    Width

  • 46' 0"

    Depth

Plan 23765JD
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  • 995

    Sq. Ft.

  • 1

    Bed

  • 1

    Bath

  • 50' 0"

    Width

  • 34' 0"

    Depth

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1 2 3 4 5+
1 2 3 4 5+
Footprint (width/depth/height)
Plan Type
  • Single Family Home 358
  • Stand Alone Garage 134
  • Multiple Family Home 0
  • Other (sheds, pool houses, offices) Other (sheds, offices...) 5
Half Baths
  • 1 85
  • 2 1
  • 3 0
  • 4 0
  • 5+ 0
Floors
  • 1 241
  • 2 251
  • 3 5
Foundation
  • Basement 88
  • Combo Basement-Crawl 0
  • Combo Slab-Crawl 1
  • Crawl 191
  • Daylight 27
  • Joist 0
  • Monolithic Slab 33
  • Pier 6
  • Piling 5
  • Post/Beam 2
  • Post Frame 0
  • Post/Pier 0
  • Raise Island 0
  • Slab 409
  • Stem Wall 30
  • Walkout 50
Exterior Walls
  • Block / CMU (main floor)
    7
  • 2x4 212
  • 2x6 408
  • ICF 1
  • 2x4 and 2x6 3
  • Log 0
  • Metal 3
Garage Type
  • Attached 81
  • Detached 129
  • Carport 12
  • Drive Under 24
  • RV Garage 17
  • None 222
Garage Location
  • Front 216
  • Side 36
  • Rear 11
  • Courtyard 7
Number of Vehicles
  • 1 34
  • 2 141
  • 3 72
  • 4 13
  • 5+ 4
Bedroom and Bath Options
  • Bedrooms - Clustered 46
  • Bedrooms - Split 10
  • Master Suite - 1st Floor 258
  • Master Suite - 2nd Floor 198
  • Master Suite - Lower Level 2
  • Master Suite - Sitting Area 4
  • Two Master Suites 3
  • In-Law Suite 28
  • Jack & Jill Bath 10
Kitchen and Dining
  • Butler Walk-in Pantry 40
  • Breakfast Nook 23
  • Formal Dining 7
  • Two Kitchen Islands 0
Laundry Location
  • Laundry Access from Master Suite 29
  • Laundry - Upstairs 93
  • Laundry - Lower Level 1
Outdoor Features
  • Wrap Around Porch 16
  • Outdoor Fireplace 2
  • Outdoor Kitchen 4
  • Courtyard 1
  • Stacked Porches 0
Additional Rooms
  • Home Office 42
  • Library/Study 4
  • Den 8
  • Bonus Room 15
  • Media Room 1
  • Home Theater 2
  • Game/Rec Room 12
  • Playroom 4
  • Mudroom 35
  • Sunroom 0
  • Safe Room 0
  • Sport Court 0
  • Loft 45
  • Keeping Room 0
  • Wet Bar 16
  • Wine Room 1
Special Features
  • Angled Garage House Plans 2
  • Elevator 4
  • Handicapped Accessible 7
  • Multiple Stairs 0
  • Porte Cochere 0
  • Split Level 0
  • Two Story Great Room 54
Styles
  • Acadian 0
  • Adobe 0
  • A-Frame 0
  • Barndominium 13
  • Beach 9
  • Bungalow 13
  • Cabin 43
  • Cape Cod 1
  • Carriage 186
  • Coastal 20
  • Coastal Contemporary 2
  • Colonial 2
  • Contemporary 78
  • Cottage 227
  • Country 213
  • Craftsman 115
  • European 14
  • Farmhouse 27
  • Florida 2
  • French Country 2
  • Georgian 0
  • Hill Country 3
  • Lake House 6
  • Log 1
  • Louisiana 0
  • Low Country 2
  • Mediterranean 3
  • Mid Century Modern 16
  • Modern 53
  • Modern Farmhouse 16
  • Mountain 64
  • New American 54
  • New Orleans 0
  • Northwest 53
  • Prairie 7
  • Ranch 23
  • Rustic 74
  • Shingle 7
  • Southern 31
  • Southern Traditional 1
  • Southwest 0
  • Spanish 0
  • Traditional 100
  • Transitional 7
  • Tudor 1
  • Tuscan 0
  • Vacation 188
  • Victorian 1
Collections
  • 100 Most Popular 1
  • ADU 497
  • Affordable 23
  • Canadian 62
  • Client Photos 16
  • Energy Efficient 0
  • Exclusive 102
  • Home Office Studio 5
  • House Plan Videos 8
  • Lake House Plans 2
  • Large 22
  • Luxury 4
  • Materials List 359
  • Metric 25
  • Multi-Family Home 2
  • Multi-generational 12
  • New 38
  • Photo Gallery 44
  • Pole Barns and Post Frame 0
  • Pool House 18
  • Premium Collection 2
  • Recently Sold 275
  • Shed 0
  • Small 451
  • Sunroom 0
  • Tiny House 173
  • USDA Approved 3
Lot Features
  • Narrow Lot 449
  • Sloping Lot - Front/Up 3
  • Sloping Lot - Rear 2
  • Sloping Lot - Side 3
  • Sloping Lot 12
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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.