Model A3 – 600 sq ft 1 Bedroom ADU

More space. Better flow. Built for long-term living.

600 sq ft 

1 Bedroom

3D floor plan of a modern one-bedroom apartment with bedroom, bathroom, kitchen, and living area

Model Overview

Model A3 is a 600 sq ft 1-bedroom ADU designed to offer more space, improved layout flexibility, and enhanced comfort. This model builds on smaller layouts by providing a more open and livable environment while maintaining efficiency.

It is ideal for homeowners looking for a balanced ADU that supports both rental income and long-term occupancy.

Model features

600 sq ft 

1 Bedroom

Starting Price

Starting at $155K

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

What This Model Includes

Private Bedroom with Improved Space

The dedicated bedroom offers more room compared to smaller models, providing added comfort and functionality for long-term use.

Open Living & Kitchen Area

The expanded living and kitchen layout improves flow and usability, creating a more comfortable shared space.

Full Bathroom

A complete bathroom is included with durable finishes designed for everyday use and easy maintenance.

Enhanced Layout Flexibility

With additional square footage, this model allows for better furniture placement, storage options, and overall usability.

Ideal Use Cases

Model A3 is a versatile ADU designed for homeowners who want more space without moving into larger builds.

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Why Choose Model A3

Increased Living Space

Provides more room for daily activities compared to smaller ADUs.

Better Layout Flow

Improved spacing creates a more comfortable and functional environment.

Strong Rental Value

Larger 1-bedroom units typically attract higher-quality tenants.

Balanced Investment

Offers a strong balance between size, cost, and long-term value.

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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Start Your ADU Project

If you are ready to build a 600 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 A3 ADU?

    It includes a private bedroom, living area, kitchen, and full bathroom.

  • 2. Is 600 sq ft enough for comfortable living?

    Yes. It provides more space and flexibility compared to smaller ADUs.

  • 3. Can this model be customized?

    Yes. Layout and finishes can be adjusted to fit your needs.

  • 4. How long does it take to build Model A3?

    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 construction in-house?

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

  • 7. Is this model good for rental income?

    Yes. Larger 1-bedroom units typically offer strong rental potential.

  • 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 a well-designed ADU increases property value and usability.

  • 10. How do I get started?

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