Duplex House Plans - Architectural Designs

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Duplex House Plans

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Multi-Family Homes

Duplex House Plans

Offering a unique blend of affordability, functionality, and modern living, duplex house plans are quickly becoming a popular choice for homeowners and investors alike. Whether you envision spacious side-by-side units or practical stacked layouts, we have the perfect duplex floor plan to match your vision and budget.

What are Duplex House Plans?

A duplex is a multi-family house plan divided into two separate living spaces. Each unit features its own private entrance, living area, backyard (in many cases), and even a garage, depending on the desig...

Modern farmhouse exterior: two stories, dark vertical siding, white gables with dormer windows, and large black-framed windows.

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Exclusive

100370GHR

Plan Number

starting at

$1,995

2,518

Sq. Ft.

6

Bed

6

Bath

2

Story

House plan exterior. Two-story with gabled roof, two-car garage, and multiple window dormers.

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52355WM

Plan Number

starting at

$1,225

3,134

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

2

Cars

House plan exterior. Two-story Modern Farmhouse design with gabled roof, dark metal accents, and covered front entry. Features attached garages.

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623049DJ

Plan Number

starting at

$1,998

$1,698.30

2,928

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

2

Cars

House plan exterior featuring a Modern Farmhouse style with a two-car garage, gables, and a covered porch. Board and batten siding.

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51923HZ

Plan Number

starting at

$1,445

$1,228.25

2,496

Sq. Ft.

6

Bed

4

Bath

1

Story

2

Cars

Tour

Modern Farmhouse house plan exterior with a metal roof, twin garages, gabled dormer, and visible entry porches.

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25077DH

Plan Number

starting at

$1,290

$1,096.50

2,680

Sq. Ft.

6

Bed

4

Bath

1

Story

1

Cars

House plan exterior. Modern Farmhouse style with a gabled roof, vertical siding, and two single-pane windows. Two entries on either side.

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Exclusive

100324GHR

Plan Number

starting at

$1,845

2,286

Sq. Ft.

6

Bed

4

Bath

1

Story

House plan exterior. Two-story Modern Farmhouse with board and batten siding, gabled roof, and black-framed windows.

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Exclusive

48628FM

Plan Number

starting at

$1,485

2,794

Sq. Ft.

6

Bed

4

Bath

2

Story

House plan exterior with two stories. Modern style with contrasting black gables, symmetrical design, and double door entry.

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Exclusive

100300GHR

Plan Number

starting at

$1,695

1,900

Sq. Ft.

4

Bed

4.5+

Bath

2

Story

House plan exterior with two units, Modern Farmhouse style. Features include gabled roof, garage doors, and front entry with windows.

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51959HZ

Plan Number

starting at

$1,445

$1,228.25

2,196

Sq. Ft.

4

Bed

4

Bath

1

Story

2

Cars

House plan exterior. Two-story, Modern style duplex with metal roof. Features include garage doors, entry doors, and covered porch areas.

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135281GRA

Plan Number

starting at

$1,450

$1,232.50

3,130

Sq. Ft.

6

Bed

5

Bath

2

Story

2

Cars

House plan exterior featuring a two-story farmhouse style with a gabled roof, a two-car garage, and decorative gable brackets.

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62360DJ

Plan Number

starting at

$1,998

$1,698.30

3,232

Sq. Ft.

6

Bed

4

Bath

1

Story

4

Cars

Tour

House plan exterior rendering. Modern Farmhouse style with a front porch, gabled roof, and dark window and door trim.

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Exclusive

100305GHR

Plan Number

starting at

$1,845

2,092

Sq. Ft.

6

Bed

4

Bath

1

Story

House plan exterior. Two-story house with gabled roof, horizontal siding, and multiple double-hung windows. A small front porch covers the entry door.

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67838MG

Plan Number

starting at

$1,595

2,000

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

House plan exterior. Two-story home with Craftsman style. Features include gabled roof, two-car garage, and a front porch.

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52367WM

Plan Number

starting at

$1,225

3,230

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

2

Cars

House plan exterior. Modern farmhouse style with two stories, gabled rooflines, dark garage doors, and black framed windows.

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Exclusive

100327GHR

Plan Number

starting at

$1,995

2,694

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

2

Cars

House plan exterior showing a one-story Modern Farmhouse with a gabled roof, covered porch, and black-framed windows and doors.

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Exclusive

420163WNT

Plan Number

starting at

$1,745

1,504

Sq. Ft.

4

Bed

2

Bath

1

Story

House plan exterior. Two story Modern Farmhouse style with gabled rooflines, entry awnings, wood shutters, and board and batten siding.

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Exclusive

100303GHR

Plan Number

starting at

$1,845

2,212

Sq. Ft.

6

Bed

4

Bath

1

Story

Tour

House plan exterior. One-story Ranch style with gable roof and porch with columns. Brick facade with dark-framed windows and doors.

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51914HZ

Plan Number

starting at

$1,395

$1,185.75

1,994

Sq. Ft.

4

Bed

4

Bath

1

Story

Tour

Modern Farmhouse house plan exterior with two stories, gabled rooflines, dark metal roof, and garage. Features wood garage doors.

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623204DJ

Plan Number

starting at

$2,098

$1,783.30

3,422

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

2

Cars

House plan exterior. Two-story Modern Farmhouse style with a gable roof, board and batten siding, and recessed entry with sidelights.

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Exclusive

100310GHR

Plan Number

starting at

$1,695

1,777

Sq. Ft.

4

Bed

4

Bath

1

Story

House plan exterior featuring a modern style, two stories, balcony, glass garage doors, and a central chimney.

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666218RAF

Plan Number

starting at

$1,944

$1,652.40

3,608

Sq. Ft.

6

Bed

4.5+

Bath

3

Story

4

Cars

Tour

House plan exterior. Two-story Modern Farmhouse with gables, porch, and a dual garage. Dark siding and wooden accents are featured.

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623179DJ

Plan Number

starting at

$2,198

$1,868.30

4,354

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

2

Cars

House plan exterior. Two-story Modern Farmhouse with board and batten siding, gables, and a shed-roof porch. Black trim frames windows and doors.

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Exclusive

85338MS

Plan Number

starting at

$2,290

2,694

Sq. Ft.

6

Bed

4

Bath

2

Story

House plan exterior. Two-story Modern Farmhouse style with gabled roof, two-car garages, and covered porches. Vertical siding and dark trim.

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51969HZ

Plan Number

starting at

$1,645

$1,398.25

3,141

Sq. Ft.

6

Bed

4.5+

Bath

2

Story

2

Cars

1
2
3
4
5
...
26
27
28

Duplex House Plans FAQs

What is a duplex house plan?

A duplex house plan is a residential building design that consists of two separate living units within the same structure. Each unit typically has its own entrance, and the units are either stacked vertically or positioned side by side.

What are the key characteristics of duplex house plans?

Separate Entrances: Each unit in a duplex has its own entrance, providing privacy and independence to the residents.
Shared Wall: Duplex units share a common wall, which helps in optimizing land use and construction costs.
Mirror Image Design: Often, duplex units are designed to be mirror images of each other, maintaining symmetry in the overall structure.

What are the benefits of duplex house plans?

Cost-Efficiency: Duplexes can be more cost-effective than building two separate houses, making them an attractive option for homeowners and investors.
Rental Income: Homeowners can live in one unit and rent out the other, providing a source of rental income.
Shared Maintenance: Since the units are part of the same structure, maintenance costs are often shared between the occupants.

How did the duplex house style originate?

The duplex style has historical roots in European architecture, where townhouses and row houses often shared walls. In densely populated urban areas, duplexes became a practical solution to optimize living space while minimizing land use. As housing needs evolved, the duplex style expanded globally and adapted to different cultural and architectural preferences.

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Total Heated Area (Sq. Ft.)

Bedrooms

Bathrooms

Plan Type

Single-Family Homes

4

Stand-Alone Garages

Multi-Family Homes (duplexes, triplexes, and other multi-unit layouts)

658

Other (sheds, pool houses, offices)

Footprint

Width (feet)

Depth (feet)

Height (feet)

Floors

Styles

Modern Farmhouse

42

Scandinavian

6

Craftsman

105

Barndominium

4

Transitional

21

Contemporary

116

Country

116

Mid Century Modern

20

New American

85

Cottage

26

More Styles

A-Frame

Acadian

Adobe

Beach

5

Bungalow

Cabin

2

Cape Cod

Carriage

Coastal

6

Coastal Contemporary

1

Colonial

3

European

22

Farmhouse

28

Florida-Style

6

French Country

6

Georgian

Hill Country

3

Log Cabin

1

Louisiana-Style

Low Country

1

Mediterranean

1

Modern

82

Mountain

13

New Orleans

1

Northwest

73

Prairie

17

Ranch

80

Rustic

13

Shingle

2

Southern

45

Southern Traditional

7

Southwest

2

Spanish

Traditional

279

Tudor

7

Tuscan

Vacation

8

Victorian

1

Number of Vehicles

1

15

2

220

3

14

4

207

5+

8

Garage Type

Standard

Attached

734

Detached

11

Carport

8

Driveunder

60

RV Garage

3

None

406

Garage Location

Front

399

Side

31

Rear

31

Courtyard

1

Bedroom and Bath Options

Bedrooms - Clustered

266

Bedrooms - Split

125

Master Suite - 1st Floor

362

Master Suite - Upstairs

309

Master Suite - Lower Level

7

Master Suite - Sitting Area

9

Two Master Suites

17

In-Law Suite

17

Jack & Jill Bath

28

Bunk Room

Kitchen and Dining

Breakfast Nook

101

Two Kitchen Islands

Butler Walk-in Pantry

104

Butlery

Formal Dining

34

Laundry Location

Laundry Access from Master Suite

13

Laundry - Main Level

310

Laundry - Upstairs

178

Laundry - Lower Level

19

Laundry Chute

1

Additional Rooms

Optionally Finished Bonus Room

26

Den

25

Flex Room

40

Game/Rec Room

16

Home Office

74

Home Theater

7

Keeping Room

2

Library/Study

23

Loft

73

Media Room

2

Mudroom

149

Playroom

1

Safe Room

1

Sport Court

Sunroom

5

Two Story Great Room

35

Wet Bar

6

Wine Room

Outdoor Features

Wrap Around Porch

13

Outdoor Fireplace

1

Outdoor Kitchen

Courtyard

5

Stacked Porches

3

Foundation

Basement

343

Combo Basement-Crawl

Combo Slab-Crawl

Crawl

496

Daylight

68

Joist

Monolithic Slab

27

Pier

1

Piling

Post/Beam

3

Post Frame

Post/Pier

Raise Island

Slab

500

Stem Wall

18

Walkout

180

Special Features

Accessible Design

3

Casita

Elevator

3

Finished Bonus Room

4

Multiple Stairs

1

Split Level

6

More Special Features

Exterior Walls

Block / CMU (main floor)

5

2x4

311

2x6

610

2x8

ICF

2x4 and 2x6

Log

Metal

2

Collections

New Arrivals

19

Exclusive

61

Interactive Tours

34

Client Photos

6

House Plan Videos

15

Photo Gallery

51

Luxury

Premium Collection

Lake House Plans

2

ADU

1

More Collections

100 Most Popular

Attached Apartments

6

Builder Bundles

Canadian House Plans

107

Closed Floor Plans

5

Dogtrot House Plans

Home Office Studio

Large

287

Materials List

592

Metric

65

Multi-Generational

8

On Sale

487

Pool House

Post-Frame

Recently Sold

273

Shed

Timber Frame

USDA Approved

7

Lot Features

Narrow Lot

270

Front/Up Sloping

14

Rear Sloping

9

Side Sloping

1

Sloping Lot

35

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