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Modern Duplex with Tandem Garages and Rooftop Sun Decks
4.8
Plan Number:

AC6438-A

Rated 4.8
Plan Number:

AC6438-A

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Floor Plan
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Modern Duplex with Tandem Garages and Rooftop Sun Decks

22201 2 2B Hardie Duplex is a modern three-story multi-family design providing a total of 3,608 square feet of heated living space. Measuring 34 ft 10 in in width and 54 ft in depth, this structure is configured for narrow urban lots while offering significant square footage per unit. The design incorporates a walkout basement foundation that maximizes site utility and provides direct access to a tandem 4-car garage encompassing 1,064 square feet.

The main level floor plan, spanning 1,594 square feet, features an open-concept core where the kitchen, dining, and living areas operate as one continuous zone. A fireplace serves as a central structural anchor, while 10-foot ceiling heights elevate the interior volume. A kitchen island provides additional workspace and sightlines across the main level, complemented by a dedicated keeping room for flexible daily use.

Occupying 1,804 square feet, the second level contains the private quarters, including a primary suite with access to a private sun deck. Secondary bedrooms utilize a Jack-and-Jill bathroom configuration to optimize floor space. Ceiling heights on this level are set at 9 feet, maintaining a balance between vertical scale and acoustic privacy. A centralized laundry closet serves the upper floor, ensuring efficient circulation between sleeping zones.

Structural integrity is provided by 2x6 exterior wall framing and a truss roof system, designed to accommodate an 8:12 roof pitch and a maximum building height of 34 feet. The inclusion of 476 square feet of deck space and 202 square feet of total porch area facilitates outdoor access from multiple levels. The design is engineered for versatility, serving as a solution for multi-generational living or as a high-yield rental property.

Key Features: three-story configuration, tandem 4-car garage, walkout basement, 10-foot main level ceilings, 9-foot second-floor ceilings, Jack-and-Jill bathroom, private primary sun deck, 2x6 wall framing, kitchen island, keeping room, fireplace, multi-family duplex layout.

Explore floor plans, available formats, and modification options for this design.

View Sample Plan
What's Included in the House Plan:
  • Cover Sheet – Basic plan information
  • General Notes – Standard codes (excludes state-specific amendments)
  • Detailed Floor Plans – Fully dimensioned layouts
  • Elevations – All exterior views
  • Building Cross Section – Vertical construction details
  • Roof Plan – Layout with notes
  • Construction Details – Key building elements
  • Window Schedule – Sizes and types listed
  • Structural Plan – For reference only (not for construction)
What's Not Included:
  • Architectural/Engineering Stamp – Handled locally when required
  • Site Plan – Handled locally when required
  • Mechanical Drawings – Handled locally when required
  • Plumbing Drawings – Handled locally when required
  • Electrical Drawings – Handled locally when required
  • Energy Calculations – Handled locally when required
  • Foundation & Framing Plans – Handled locally when required

House Plan Specifications

  • Total Living (heated area):  3608 sq ft
    All Unheated Under-Roof Areas  1950 sq ft
    Total Structure With Basement  5768 sq ft
    Total Structure without Basement  5558 sq ft
    1st Floor:  1594 sq ft
    2nd Floor:  1804 sq ft
    Basement:  210 sq ft
    Deck:  476 sq ft
    Lanai:  (Patio) 216
    Front Porch:  94 sq ft
    Rear Porch:  108 sq ft
    Storage:  208
  • Garage:  1064 sq ft
    Garage Bays:   4
    Garage Load:   Front
  • Bedrooms:   6
    Bathrooms:   4
    Half Bathrooms:   2
  • Foundation:   Walkout Basement
    Wall Framing:   2x6
    Roof Framing:   Truss
    Roof Pitch:  0.5:12
  • Width of House:  34'10''
    Depth of House:  54'
    Building Height:  34'
  • First Floor Ceiling Height:  10'
    Second Floor Ceiling Height:  9'
    Garage Ceiling Height:  9'

Key Features

  • Deck
  • Fireplace
  • Jack and Jill Bathroom
  • Keeping/Family Room
  • Kitchen Island
  • Patio
  • Private Master Bath
  • Second Floor Laundry
  • Second Floor Master Suite
Modify this plan to make it perfect
Our hassle-free process makes it easy to modify your dream home. To receive an estimate please submit your request using the link below.
Submit a Modification Request
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Plan Number: AC6438-A
Modern Duplex with Tandem Garages and Rooftop Sun Decks
6 Bedrooms
4 Full Baths
2 Half Baths
3608 SQ FT
3 Stories
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Basement
floor plan
Main Level
floor plan
Second Floor
floor plan
House Plan Formats Explained

PDF (Single Build)

A complete set of working drawings delivered in digital PDF format. This option comes with a license to build ONE home and includes a copyright release for printing unlimited sets of plans and making modifications.

CAD + PDF (Single Build)

A complete set of working drawings delivered in digital DWG and PDF formats. AutoCAD files are used by design professionals to make significant modifications or engineering calculations to the plan. This option comes with a license to build ONE home and includes a copyright release for printing unlimited sets of plans and making modifications.

5 or 8 Prints (Single Build)

Five or eight printed sets of working drawings shipped to you. This option comes with a license to build ONE home.

5 Prints + PDF (Single Build)

Five printed sets of working drawings shipped to you, plus a digital version in PDF format. This option comes with a license to build ONE home and includes a copyright release for printing unlimited sets of plans and making modifications.

PDF (Multi Build)

A complete set of working drawings delivered in digital PDF format. This option comes with a license to build an UNLIMITED number of homes and includes a copyright release for printing unlimited sets of plans and making modifications. This option may not be available for all house plans, or may require a specific format to be purchased. Please call 770-831-6363 for more information.

CAD + PDF (Multi Build)

A complete set of working drawings delivered in digital DWG and PDF formats. AutoCAD files are used by design professionals to make significant modifications or engineering calculations to the plan. This option comes with a license to build an UNLIMITED number of homes and includes a copyright release for printing unlimited sets of plans and making modifications. This option may not be available for all house plans, or may require a specific format to be purchased. Please call 770-831-6363 for more information.

Choose a building foundation for your home. The foundation provides stability to a home's structure from the ground up.

Slab - This concrete foundation is reinforced with steel rods and suitable for flat ground.

Crawl Space - This foundation is raised off the ground with low walls resting on footings, providing space for wiring, plumbing, and storage.

Basement - This foundation is entirely or partially below ground and offers storage or living areas.

Walkout Basement - This foundation is typically suited for rear-sloping lots and provides storage or living areas. Walkout basements have doors that provide access to the outside.

Readable Reverse
An option to reverse the plan including texts and dimensions to make them readable.
2x4 or 2x6 Conversion
Convert the exterior framing other than the standard framing included in the plan.
Multi Build Licence (CAD required) Gives the buyer the legal right to build the house plan multiple times
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JoAnne and the entire staff was extremely helpful and patient with us while we decided between 2 homes. This home has outstanding curb appeal and a great layout perfect for us. I work from home so having the home office off the foyer is fantastic. I converted the wet bar into a storage closet for my office. We also extended the laundry room into the porch and created a multipurpose laundry/mud room. I would buy from archival designs again and again.
Rita Long
Milwaukee, WI
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It took almost a year to pick a plan. Since my husband and I retired a few years ago we wanted this last house had to have everything we wanted and needed. The kitchen is my favorite part of the house. I can see what’s happening in my neighborhood through my kitchen window and watch my husband garden in the back yard. Our children think we made a smart decision when we picked this house for our senior years.
Elaine SmithsonPierre
South Dakotaomer
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We’ve had an amazing experience with our new home and are excited to be moved in. The customer service we received during our modifications was exceptional. We are loving the open layout of the kitchen and family room. It feels spacious and I’m already planning on hosting holiday dinners at home. We recommend Archival Designs to anyone interested in building the home they’ve always wanted!
Sandra Hawkins
Montgomery, AL
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We absolutely adore the Kildare Place house plan. Made some modifications to make this home ours! Our house is the talk of the neighborhood. We host big parties every holiday and still get compliments from our friends and family. We searched for months and looked through hundreds of floor plans and this one had almost everything we wanted, and with the help of the great staff at Archival Designs we got exactly what we wanted!
Nick Lazzari
Bakersfeild, CA
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FAQ

Can I modify this Modern Duplex with Tandem Garages and Rooftop Sun Decks now or later?

Absolutely. We offer in-house modification services to adjust layouts, room sizes, or expand garages before purchase. If you prefer to make adjustments during the construction phase, purchasing the CAD file package allows your local builder or architect to make on-site changes. Simply click 'Request a Modification' for a free quote.

How much will it cost to build this Modern Duplex with Tandem Garages and Rooftop Sun Decks and why aren't exact costs shown? 

Construction costs vary significantly ($150–$300+ per sq. ft.) based on your location, material choices, and local labor rates. Because site preparation and regional codes differ, it is hard to provide a universal cost always.

Will this Modern Duplex with Tandem Garages and Rooftop Sun Decks fit my lot, and can I add a basement or flip the layout?

You can check the 'Modifications' tab for width and depth requirements. To fit your site's orientation, most plans are available in a 'Right Reading Reverse' (mirrored) format. We also offer slab, crawlspace, and basement foundation adjustments for every design.

Do your plans meet building codes in my area and do I need a professional stamp?

Our plans meet or exceed national IRC (International Residential Code) standards. However, due to varying local requirements regarding seismic, wind (hurricane), or snow loads, house plans do not come with a professional architect’s or engineer’s seal. Most municipalities require a review and stamp by a local licensed professional to obtain a building permit.

Are plumbing, HVAC, and mechanical drawings included?

We provide the architectural and schematic electrical framework, but HVAC and plumbing layouts are not included. Because local codes and climate-specific systems vary significantly across the country, these are best finalized by your local subcontractors to ensure your home’s systems are optimized for your specific site and energy requirements.

Why should I choose Archival Designs and are the plans guaranteed?

With over 40 years of experience, Archival Designs provides high-quality, builder-ready designs that balance aesthetic elegance with structural integrity. We offer a Best Price Guarantee, a 10% discount for military and first responders, as well as builder discounts for life. And loyalty perks for pro builders. All plans are designed to comply with the IRC codes at the time of their creation. Learn more about our Best Price Guarantee.

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Modern Duplex with Tandem Garages and Rooftop Sun Decks

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