S-400: Studio 400 SF ADU

Area 400 SF
20' x 20'
1 Cozy Studio Space
1 Full Kitchen
1 Full Bathroom
1 Laundry
1 Walk-in-сloset
can be 100% customizable to your needs

All Features and Highlights Included

model overview
Area 400 SF
20' x 20'
1 Cozy Studio Space
1 Full Kitchen
1 Full Bathroom
1 Laundry
1 Walk-in-сloset
FLOOR plan S-400 / 20' x 20'
S-400: Studio 400 SF ADUFloor Plan
100% Customizable
  • Adjust ADU size & shape
  • Choose any exterior & interior finishes
  • Set room configurations
  • Customize kitchen & bathroom
  • Include accessibility features / ADA compliance
  • Add, remove & move windows & doors
  • Incorporate any storage solutions
  • Integrate patio, deck, garage or loft
  • Choose your own customization
  • And more customization options to fit your unique needs!
Best Suited For
  • Family Comfort
  • Senior Living
  • Prime Rental
  • Solo Rental
  • Short-Term Rental
  • Game Space
  • Craft or Hobby Room
  • Space for Kids
FLOOR plan S-400 / 20' x 20'
S-400: Studio 400 SF ADUFloor Plan
Full Kitchen
  • Functional solid wood cabinetry
  • Premium materials throughout
  • Soft-closing cabinets and drawers
  • Durable stone countertops
  • Optimized kitchen triangle for efficiency
Complete Bathroom
  • Full-size shower/tub combination
  • Waterproof, easy-to-clean materials
  • Low water consumption fixtures
  • Effective moisture control
  • Functional vanity with storage
Efficient Appliances
  • Energy-efficient heat pump
  • Dishwasher, 24"
  • Slide-in range, 30"
  • Refrigerator, 30"
  • Microwave hood, 30"
Functional Amenities
  • Spacious storage solutions
  • Energy-saving LED lighting
  • Dedicated laundry area
  • Adjustable climate control
  • Zero-threshold interior for accessibility
Step Inside a Beautiful Finished ADU

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ADU Models and Designs

Search dozens of build-ready ADU models, all fully customizable
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ADU Area
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1500 +SF
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S-250
S-250
Area 259 SF
18'6" x 14'
1 Cozy Studio Space
Full Kitchen
More
S-300
S-300
Area 301 SF
21'6 x 14'
1 Cozy Studio Space
Full Kitchen
More
S-380
S-380
Area 380 SF
20' x 20'
1 Cozy Studio Space
Full Kitchen
More
S-400
S-400
Area 400 SF
20' x 20'
1 Cozy Studio Space
Full Kitchen
More
S-470
S-470
Area 473 SF
21' x 22'6''
1 Cozy Studio Space
Full Kitchen
More
M-300
M-300
Area 298 SF
13'6 x 27'6
1 bedroom
Full Kitchen
More
M-330
M-330
Area 330 SF
20'x 16'6
1 Bedroom
Full Kitchen
More
M-370
M-370
Area 370 SF
19' x 19'6
1 bedroom
Full Kitchen
More
M-400
M-400
Area 400 SF
25' x 16'
1 Bedroom
Full Kitchen
More
M-500
M-500
Area 500 SF
25' x 20'
1 Bedroom
Full Kitchen
More
M-520
M-520
Area 520 SF
20' x 26'
1 Bedroom
Full Kitchen
More
M-550
M-550
Area 550 SF
26'x 23'6''
1 Bedroom
Full Kitchen
More
M-600
M-600
Area 600 SF
25'x24'
1 bedroom
Full Kitchen
More
M-800
M-800
Area 799 SF
42' x 25'
1 Bedroom
Full Kitchen
More
L-465
L-465
Area 459 SF
25'6'' x 18'
2 Bedrooms
Full Kitchen
More
L-545
L-545
Area 543 SF
26' x 23'
2 Bedrooms
Full Kitchen
More
L-580-2
L-580-2
Area 580 SF
11'6x25'
2 bedroom
More
L-650B
L-650B
Area 646 SF
27'6" x 27'
2 bedroom
Full Kitchen
More
L-650A
L-650A
Area 650SF
24'6 x 26'6
2 bedroom
Full Kitchen
More
L-690
L-690
Area 690 SF
20' x 34'6
2 Bedrooms
Full Kitchen
More
L-749B
L-749B
Area 749 SF
21'6'' x 36'6''
2 bedroom
Full Kitchen
More
L-749A
L-749A
Area 753 SF
25' x 35'
2 Bedrooms
Full Kitchen
More
L-760
L-760
Area 757 SF
28' x 27'
2 Bedrooms
Full Kitchen
More
L-800-2
L-800-2
Area 800 SF
22' x 18'6
2 bedroom
More
L-900
L-900
Area 896 SF
32' x 28'
2 Bedrooms
Full Kitchen
More
L-920
L-920
Area 913 SF
41'6 x 22'
2 Bedrooms
Full Kitchen
More
L-1080
L-1080
Area 1080 SF
45'x24'
2 bedroom
Full Kitchen
More
XL-749
XL-749
Area 743 SF
31' x 28'6
3 Bedrooms
Full Kitchen
More
XL-1100
XL-1100
Area 1100 SF
40' X 25'
3 Bedrooms
Full Kitchen
More
XL-1200
XL-1200
Area 1200 SF
40' x 30'
3 Bedrooms
Full Kitchen
More

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    Energy Efficiency and Sustainability
    Mold-Free Interior
    Waterproof
    Interior Surfaces
    33%
    Water Consumption Cut
    40%
    More Effective Insulation
    100%
    Resistant to Pests, Mold & Rot
    20%
    Lower Bills More Efficient HVAC
    60%
    Greater Energy Efficiency
    80%
    More Cost-Effective Lighting
    Toxic-Free Materials
    50%
    Less Noise With Solid Materials
    4xFaster
    Preparation Process
    0
    Supply Chain Disruptions
    Lifetime Warranty
    on Select Materials

    400 sq. ft. ADU Floor Plans

    Have you considered an autonomous secondary unit in your backyard? If so, A+ Construction & Remodeling gladly introduces a meticulously designed 400 square feet ADU floor plan. The well-designed layout provides clear and efficient organization of essential living areas, which makes it an ideal option for retired parents, teenagers seeking independence, or young families who need a space of their own.

    Ready to learn more about our stylish studio model? Let’s delve into its specific features and unique advantages!

    400 sq. ft. ADU Project Benefits

    The 400 square feet studio ADU by A+ offers an efficient layout, including a spacious combined zone with the living room and dining area transitioning into the corner space dedicated to the bedroom. The open-concept floor plan serves the purpose of removing barriers between diverse zones to create a cohesive and airy vibe.

    In addition, this small ADU unit boasts the following positive features:

    1. Rental property. Many homeowners opt to build an ADU to create a source of passive income. If you rent out a small house on your land, you might get some extra money to compensate for monthly expenses, which is always nice.
    2. Reasonable pricing. An ADU is a good investment in two aspects. Firstly, its construction cost is more affordable than that of a traditional house. Secondly, if you pay all necessary costs now, you receive an opportunity to resell your property for a greater price in the future.
    3. Accommodate relatives and guests. If you want to foster communication with your family or expand your social circle, adding a new ADU may be a good idea. Also, you can just rest in the backyard cottage whenever it’s empty.
    4. No designer needed. By choosing standard layouts, you avoid a costly and lengthy process of engineering and designing an ADU from scratch. Designers from A+ have already taken care of the project.

    If you want to find all the mentioned features in your accessory dwelling unit, the 400 sq. ft. ADU project is the best choice for you. Get in touch with A+ Construction & Remodeling online to discuss and create an ADU project that fits your vision!

    ADU Floor Model of 400 sq. ft. Characteristics

    Understanding the balance between functionality and comfort within a compact footprint of 400 sq.ft. is what our ADU floor plan can reflect. Creating a clever layout where all the essential living areas are well-organized and work with each other, leaving sufficient empty areas for movement, makes it ideal for a self-contained apartment, a holiday home, or a sustainable rental building.

    A+ Construction & Remodeling in Sacramento, California, offers a studio consisting of a bedroom area, a cozy living area, and a dining zone, as well as a full kitchen and full bathroom. It also features a laundry space as well as practical storage solutions like a walk-in closet adjoining the bathroom, which further enhances the quality of life in this cozy dwelling.

    Let’s go over the details our 400 square feet ADU project incorporates:

    • Availability of ample living space created by shared open living/dining zone and the corner arrangement of the furniture;
    • Space optimization is achieved by clever room organization to the point of perfect space efficiency where every inch serves its purpose;
    • Good lighting and a bright atmosphere thanks to the sufficient amount of windows for natural light;
    • Top-quality materials used for furniture and interior and exterior finishes.
    • All kitchen and bathroom appliances and energy-efficient features (fridge, sink, toilet, and so on);
    • Stylish design solutions emphasize a blend of modern simplicity and cozy decorative elements.

    Sit at the cozy table for two with a cup of coffee and watch TV on our cushy-seating sofa a few steps from the dedicated bedroom zone! If you seek to maximize habitable areas and simultaneously save your yard space, ADU floor plans by A+ offer a great boost to your property. Reach out now and take advantage of our free consultation and speedy construction process!

    Frequently Asked Questions — FAQ

    Is a 400 square feet ADU subject to high impact fees?

    Compared to larger ADUs (more than 750 sq. ft.), 400 sq. ft. units are subject to lower impact fees. However, it all depends on the local regulations and policies of the specific jurisdiction. For instance, coastal zones may have different requirements.

    What is the right location for an ADU?

    To establish the right location for the building, it’s vital to stay up to date with city laws and regulations. Typically, you can build an ADU 4 feet from the property line (counted from the walls and the seat of the house). These are usual setback requirements, restricting the width and length of the ADU.

    Can I install clerestory windows near the roof or add a loft zone to my ADU floor plan?

    If you opt for a bigger investment and order a customized ADU, you can choose everything from the materials (tile, board, siding, etc.) to decor and interior details and the location of the main entrance. Keep in mind that the cost will be higher, but the level of detailing will be greater.

    Does an attached ADU require site work?

    Yes, it may require site work if the existing structure needs adjustments that are necessary for the particular ADU. It may involve manipulations with the foundation, utility, or drainage considerations.

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