Model A1 – 400 sq ft Studio ADU
Compact design. Maximum efficiency. Built for value.
400 sq ft
Studio

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.
Rental income unit
Guest house or in-law suite
Private office or studio space
Starter ADU for smaller properties

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.
Full design-build approach
Permit coordination and approvals
In-house construction team
Structured and efficient process
Serving Sacramento & Bay Area
We build ADUs throughout Sacramento and select Bay Area markets, including:

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.
Thank you for contacting us.
We’ll get back to you as soon as possible.
We got it.
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.

