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
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

Explore Our Top-Rated ADU Models

S-250
S-250
18'6" x 14'
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S-300
S-300
21'6 x 14'
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S-380
S-380
20' x 20'
1 Cozy Studio Space
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S-400
S-400
20' x 20'
1 Cozy Studio Space
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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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