Model A1 – 400 sq ft Studio ADU

Compact design. Maximum efficiency. Built for value.

400 sq ft 

Studio

Compact studio apartment floor plan with bed, kitchen, bathroom, sofa, and dining area in a bright neutral layout

Model Overview

Model A1 is a 400 sq ft studio ADU designed for efficient living and strong rental potential. This layout maximizes every square foot, making it an ideal option for homeowners looking to add functional space without overbuilding.

Whether used as a rental unit, guest house, or private workspace, Model A1 delivers simplicity, flexibility, and long-term value.

Model features

400 sq ft 

Studio

Starting Price

Starting at $135K

Pricing is based primarily on square footage and may vary depending on site conditions, finishes, and customization.

What This Model Includes

Open Studio Layout

The open-concept design combines living, sleeping, and dining areas into one efficient space. This allows for flexibility in how the unit is used while maintaining a comfortable layout.

Functional Kitchen Area

A compact kitchen layout is included to support everyday use. Designed for efficiency, it provides the essentials without taking up unnecessary space.

Full Bathroom

The unit includes a complete bathroom with clean finishes and practical design. Built for durability and ease of maintenance.

Space Optimization

Every element of the layout is designed to maximize usable space. Storage, flow, and functionality are all considered in the design.

Ideal Use Cases

Model A1 is designed for homeowners who want a simple, high-value addition to their property.

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Cozy beige living room and kitchen with sofa, coffee table, dining set, and large windows.

Why Choose Model A1

Efficient Footprint

Perfect for properties with limited space or homeowners looking for a lower entry point into ADU construction.

Strong Rental Potential

Studio units are in demand and offer consistent rental opportunities.

Faster Build Timeline

Smaller size allows for a more streamlined construction process.

Cost-Effective Investment

Lower overall cost compared to larger ADU models while still adding value to your property.

Built by MC Construction

All ADU models are built by our in-house team, ensuring consistent quality, direct communication, and a smooth process from start to finish.

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Serving Sacramento & Bay Area

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We build ADUs throughout Sacramento and select Bay Area markets, including:

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Modern single-story house exterior with warm-lit windows, front door, and walkway at dusk

Start Your ADU Project

If you are ready to build a 400 sq ft ADU, MC Construction is here to guide you through every step with clarity and experience.

Let’s build a space that works for your property.

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A Team You Can Rely On

At MC Construction, we treat every project like it matters because it does. We understand that your home is a major investment, and we take that responsibility seriously.


Our goal is not just to complete a project, but to build something that lasts and to create an experience that makes you confident in your decision to work with us.

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Frequently Asked Questions

  • 1. What is included in the Model A1 ADU?

    It includes a studio layout, kitchen area, and full bathroom designed for efficient living.

  • 2. Is 400 sq ft enough for a rental unit?

    Yes. Studio ADUs are commonly used for rentals and are highly functional when designed properly.

  • 3. Can this model be customized?

    Yes. Layout and finishes can be adjusted based on your preferences and property requirements.

  • 4. How long does it take to build Model A1?

    Most ADU projects take around 10 months, including permits and construction.

  • 5. Do you handle permits?

    Yes. We manage the full permitting process.

  • 6. Do you complete the construction in-house?

    Yes. Our team handles all work to ensure quality and consistency.

  • 7. Can this ADU be used as a guest house?

    Yes. It is ideal for guest use, rental income, or personal space.

  • 8. What areas do you serve?

    We serve Sacramento and select Bay Area cities within a 2 to 2.5-hour radius.

  • 9. Will this increase my property value?

    Yes. Adding an ADU can significantly improve property value.

  • 10. How do I get started?

    Contact us to schedule a consultation and discuss your ADU project.