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Addition House Plans

If you already have a home that you love but need some more space, check out these addition plans. We have covered the common types of additions, including garages with apartments, first floor expansions, and second story expansions with new shed dormers. Even if you are just looking for a new porch to add country charm and value to your house, we have that, too! Our additions are detached or made with smaller Cape Cod, bungalow, and Craftsman houses in mind. They also come with different uses—some create new master suites or bedrooms, while others increase living spaces and offer brand new, expanded kitchens. These additions have been made available as generic stock plans, and if they can be adapted to your existing home, they offer a less expensive alternative than having custom plans drawn up. If you need assistance choosing an addition, please email, live chat, or call us at 866-214-2242 and we'll be happy to help!

Featured Home Design
Addition House Plans
House Plan 5179

Basic Plan Search

Total Living Area Sq. Ft. to
Plans Found: 33
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  • add to favorites
    pin-it
    image of Rockwell House Plan
    546 sq. ft.
    THD-1984 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    2
    Width
    26' 6"
    Depth
    23' 0"
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    pin-it
    image of The Pecan Ridge House Plan
    1,040 sq. ft.
    THD-4541 show plan details
    Beds
    Baths
    Garages
    3
    Stories
    1
    Width
    40' 0"
    Depth
    26' 0"
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    pin-it
    image of Barkley Retreat House Plan
    2,000 sq. ft.
    THD-2006 show plan details
    Beds
    Baths
    2
    Garages
    N/A
    Stories
    2
    Width
    65' 0"
    Depth
    36' 0"
  • add to favorites
    pin-it
    image of The Bluestone 2 House Plan
    624 sq. ft.
    THD-4785 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    1
    Width
    26' 0"
    Depth
    24' 0"
  • add to favorites
    pin-it
    image of The Pottery Port 3 House Plan
    984 sq. ft.
    THD-4634 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    2
    Width
    22' 0"
    Depth
    28' 0"
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    pin-it
    image of Great New Sun Porch (P0001) House Plan
    315 sq. ft.
    THD-6237 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    1
    Width
    18' 0"
    Depth
    18' 0"
  • add to favorites
    pin-it
    image of KIPLING House Plan
    1,380 sq. ft.
    THD-8306 show plan details
    Beds
    1
    Baths
    1
    Garages
    4
    Stories
    1.5
    Width
    58' 0"
    Depth
    30' 0"
  • add to favorites
    pin-it
    image of New Shed Dormer for 2 Bedrooms (BRB12) House Plan
    440 sq. ft.
    THD-5176 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    2
    Width
    29' 0"
    Depth
    0' 0"
  • add to favorites
    pin-it
    image of Great New Great Room (F0006) House Plan
    308 sq. ft.
    THD-6240 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    1
    Width
    22' 0"
    Depth
    14' 0"
  • add to favorites
    pin-it
    image of Burrard House Plan
    1,015 sq. ft.
    THD-3264 show plan details
    Beds
    1
    Baths
    1.5
    Garages
    2
    Stories
    2
    Width
    24' 0"
    Depth
    36' 0"
  • add to favorites
    pin-it
    image of Smart New Kitchen (KFD02) House Plan
    108 sq. ft.
    THD-6232 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    1
    Width
    15' 0"
    Depth
    7' 0"
  • add to favorites
    pin-it
    image of New Front Porch (P0013) House Plan
    200 sq. ft.
    THD-6239 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    1
    Width
    39' 0"
    Depth
    5' 0"
  • add to favorites
    pin-it
    image of Lawson 2 House Plan
    355 sq. ft.
    THD-4678 show plan details
    Beds
    Baths
    Garages
    1
    Stories
    1
    Width
    16' 0"
    Depth
    22' 0"
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    pin-it
    image of New Master Suite (BRB17) House Plan
    432 sq. ft.
    THD-5177 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    2
    Width
    27' 0"
    Depth
    7' 0"
  • add to favorites
    pin-it
    image of HEMBREE House Plan
    484 sq. ft.
    THD-8307 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    1
    Width
    22' 0"
    Depth
    22' 0"
  • add to favorites
    pin-it
    image of New Master Suite (BRB09) House Plan
    492 sq. ft.
    THD-5175 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    1
    Width
    13' 0"
    Depth
    38' 0"
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    pin-it
    image of HANSON III House Plan
    512 sq. ft.
    THD-8090 show plan details
    Beds
    1
    Baths
    1
    Garages
    2
    Stories
    1.5
    Width
    23' 10"
    Depth
    28' 0"
  • add to favorites
    pin-it
    image of GRANGER I House Plan
    528 sq. ft.
    THD-6345 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    1
    Width
    22' 0"
    Depth
    24' 0"
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    pin-it
    image of HANSON I House Plan
    624 sq. ft.
    THD-6346 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    1.5
    Width
    24' 0"
    Depth
    26' 0"
  • add to favorites
    pin-it
    image of Cobble Lane House Plan
    672 sq. ft.
    THD-4679 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    1
    Width
    24' 0"
    Depth
    28' 0"
  • add to favorites
    pin-it
    image of HANSON II House Plan
    780 sq. ft.
    THD-6347 show plan details
    Beds
    1
    Baths
    Garages
    2
    Stories
    1.5
    Width
    26' 0"
    Depth
    30' 0"
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    pin-it
    image of Add a Second Floor (CAP04) House Plan
    794 sq. ft.
    THD-5179 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    2
    Width
    34' 0"
    Depth
    26' 0"
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    pin-it
    image of New Family Room & Master Suite (KFBR3) House Plan
    800 sq. ft.
    THD-6236 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    2
    Width
    25' 0"
    Depth
    18' 4"
  • add to favorites
    pin-it
    image of GRANGER III House Plan
    816 sq. ft.
    THD-8089 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    1
    Width
    22' 0"
    Depth
    24' 0"
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    pin-it
    image of HANSON IV House Plan
    960 sq. ft.
    THD-8304 show plan details
    Beds
    1
    Baths
    1
    Garages
    3
    Stories
    1.5
    Width
    40' 0"
    Depth
    24' 0"
  • add to favorites
    pin-it
    image of The Hillock 2 House Plan
    992 sq. ft.
    THD-4780 show plan details
    Beds
    2
    Baths
    1.5
    Garages
    2
    Stories
    2
    Width
    28' 0"
    Depth
    32' 0"
  • add to favorites
    pin-it
    image of Mercer House Plan
    1,028 sq. ft.
    THD-9825 show plan details
    Beds
    1
    Baths
    1.5
    Garages
    1
    Stories
    2
    Width
    24' 0"
    Depth
    36' 0"
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    pin-it
    image of Ginger Lane House Plan
    1,356 sq. ft.
    THD-4677 show plan details
    Beds
    Baths
    Garages
    2
    Stories
    2
    Width
    28' 0"
    Depth
    30' 0"
  • add to favorites
    pin-it
    image of Dutch Port House Plan
    1,398 sq. ft.
    THD-4654 show plan details
    Beds
    Baths
    Garages
    3
    Stories
    2
    Width
    36' 0"
    Depth
    22' 4"
  • add to favorites
    pin-it
    image of Cottonwood 2 House Plan
    2,154 sq. ft.
    THD-4681 show plan details
    Beds
    Baths
    Garages
    3
    Stories
    2
    Width
    42' 0"
    Depth
    42' 0"
  • add to favorites
    pin-it
    image of The Cottonwood 2 House Plan
    2,342 sq. ft.
    THD-4782 show plan details
    Beds
    Baths
    Garages
    3
    Stories
    2
    Width
    48' 0"
    Depth
    42' 0"
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    pin-it
    image of The Forrest Branch House Plan
    3,099 sq. ft.
    THD-9677 show plan details
    Beds
    1
    Baths
    1
    Garages
    N/A
    Stories
    2
    Width
    44' 0"
    Depth
    52' 0"
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    pin-it
    image of Cinnamon Knoll House Plan
    192 sq. ft.
    THD-7073 show plan details
    Beds
    Baths
    Garages
    N/A
    Stories
    1
    Width
    12' 0"
    Depth
    16' 0"
Plans Found: 33
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