
ADU
(Accessory Dwelling Unit)
What is an ADU?

What is an ADU?
Accessory Dwelling Unit (ADU) is an innovative way to maximize your property’s potential by adding additional living space to an existing residential lot. Also referred to as granny flats or in-law units, ADUs are self-contained residential spaces that can be detached, attached, or converted from existing structures, such as garages or basements.
In California, ADUs have gained popularity due to rising housing demands, affordable living solutions, and recent state legislation like SB9, which has streamlined zoning regulations. ADUs are a versatile option for families needing extra space, homeowners looking to generate rental income, or those seeking to increase property value.

Family Accommodation
ADUs are perfect for multi-generational living, keeping loved ones close while maintaining independence.

Increased Property Value
Adding an ADU can significantly boost your property’s market value, offering long-term investment benefits.

Rental Income
ADUs can be rented out as long-term units or short-term rentals on platforms like Airbnb, creating additional income streams.
Types of ADU

Detached ADUs
Separate from the primary home, offering maximum privacy and flexibility.

Attached ADUs
Built onto the main house, such as an extension to an existing house or above a larger garage, sharing existing infrastructure to reduce costs.

Converted ADUs
Created by repurposing existing spaces, like garages, basements, or attics, into livable units.

Junior ADUs (JADUs)
Smaller units (typically under 500 sq ft) that share infrastructure with the main house, making them more affordable and quicker to construct.
What We Do
At Simplexity, we specialize in designing and building ADUs that are tailored to your needs, budget, and property.
Our experienced team is here to guide you through the entire process, ensuring your ADU project is smooth, stress-free, and built to the highest standards. Contact us today for a free consultation and take the first step toward turning your ADU vision into reality.
250+
Completed projects
- 5.0
Rated 5.0 out of 5 Stars

Our Process
- Design & Permitting: We handle every detail, from concept design to securing permits.
- Construction: High-quality construction with efficient timelines and superior craftsmanship.
- Finishing Touches: Complete interior and exterior finishes to make your ADU move-in ready.