As California housing needs continue to grow, Accessory Dwelling Units (ADUs) have become one of the most popular ways for homeowners to create additional living space and increase property value. Whether you’re looking to generate rental income, create a private space for your family, or simply expand your home’s functionality, choosing between a detached ADU and an attached ADU is one of the first and most important decisions you’ll make.
In this guide, we’ll break down the key differences between the two, along with their pros and cons, to help you decide which option best fits your property and goals.
What Is an ADU?
An ADU, or Accessory Dwelling Unit, is a self-contained living space built on the same lot as a primary residence. ADUs typically include a kitchen, bathroom, living area, and a private entrance.
They are perfect for:
Creating a rental property for extra income
Providing independent living space for family or guests
Increasing property value with versatile housing options
At Aziz Construction, our expert team specializes in ADU construction, handling everything from design to final build to ensure your project meets local codes and exceeds your expectations.
What Is a Detached ADU?
A detached ADU is a completely separate structure from your main home. Think of it as a small, independent house built in your backyard.
Benefits of a Detached ADU
Privacy – Ideal for rental units or family members who need independent space.
Increased Property Value – A fully independent unit often adds significant resale value.
Flexible Design Options – No structural limitations from the main house.
Rental Income Potential – Easier to rent as a private space, offering long-term ROI.
Challenges of a Detached ADU
Higher Construction Costs – Requires a separate foundation, utilities, and permits.
Space Requirements – Needs enough yard space to accommodate a standalone building.
Our team at Aziz Construction provides complete accessory dwelling unit construction services, helping you navigate zoning laws and design a detached ADU that perfectly fits your property layout.
What Is an Attached ADU?
An attached ADU is connected to your primary residence, either as an extension or by converting existing space, such as a garage or basement.
Benefits of an Attached ADU
Lower Building Costs – Shares walls, utilities, and infrastructure with the main house.
Easier Permitting – Typically simpler and faster to approve than detached ADUs.
Ideal for Multi-Generational Living – Great for keeping family members close while maintaining some independence.
Challenges of an Attached ADU
Less Privacy – Since it’s connected to your home, sound and access may be shared.
Limited Design Options – Must work within the constraints of your existing structure.
If you want a cost-effective and efficient solution, our ADU construction company can help you plan and execute a seamless attached ADU build.
