Unlocking ADU Potential: Key Updates for Detached ADUs and 66323 Units in California

California’s housing crisis continues to inspire innovative solutions, and the latest updates to the state’s ADU (Accessory Dwelling Unit) laws are no exception. Homeowners and developers alike now have expanded opportunities to maximize property value and address housing needs with detached ADUs and ‘66323 units’, a critical designation in the new regulations.

This blog explores the transformative changes in ADU development for single-family and multifamily properties, highlighting how these updates empower property owners to create more housing in an efficient and affordable way.

Expanded Opportunities for Detached ADUs on Multifamily Properties

One of the most significant updates allows multifamily property owners to construct up to eight detached ADUs on their lots. However, the number of ADUs cannot exceed the total number of existing dwelling units on the property. Here’s how this works:

  • For a Fourplex: The property qualifies for up to four detached ADUs.
  • For a Sixplex: The property qualifies for up to six detached ADUs.
  • For an Apartment Complex with 20 Units: The property qualifies for up to eight detached ADUs, which is the maximum allowed.

This change is a game-changer for multifamily properties, encouraging higher density and creating additional rental opportunities in urban and suburban areas.

Why It Matters:
This update addresses a critical bottleneck in housing development, particularly in areas where land for new construction is limited. By allowing more ADUs, the state is facilitating the creation of affordable housing in existing communities, reducing the need for sprawling developments.

Single-Family Properties: A New Frontier for ADUs

Single-family homeowners also benefit from new flexibility under the updated regulations. Now, a single-family property can add up to three units:

  1. One Attached ADU: Must be converted from existing space within the home or accessory structures like garages.
  2. One JADU (Junior Accessory Dwelling Unit): A small unit, up to 500 square feet, created entirely within the existing home.
  3. One Detached ADU: A newly constructed unit separate from the main home.

This trio of options maximizes the use of available space while providing homeowners with income-generating opportunities and the ability to house extended family members or tenants.

Example:
A homeowner with an unused garage and a large backyard can convert the garage into a JADU, build a new detached ADU in the backyard, and still add an attached ADU within their existing home structure. This creates a vibrant mini-community within one property.

The Importance of ‘66323 Units’

The term ‘66323 units’ refers to ADUs and JADUs created under Government Code Section 66323. These units have unique advantages that set them apart:

  • Streamlined Approval: Local agencies must approve these units without discretionary review.
  • Minimal Restrictions: No parking, height, or setback requirements beyond basic safety standards.
  • Flexibility: Allows creative use of existing non-livable spaces like garages, attics, and basements.

Significance for Single-Family and Multifamily Properties:
‘66323 units’ make it easier for property owners to develop ADUs in challenging circumstances, such as lots with non-conforming zoning or older structures. For multifamily properties, they enable the transformation of unused spaces, like storage rooms or boiler rooms, into livable units.

Benefits of These Updates

  • Increased Housing Supply: More ADUs mean more housing opportunities for renters, particularly in high-demand areas.
  • Affordability: ADUs are cost-effective to build and maintain compared to traditional housing developments.
  • Environmental Sustainability: By utilizing existing properties and reducing urban sprawl, these updates promote eco-friendly growth.
  • Economic Growth: Homeowners and multifamily property owners can generate additional income through rentals.

How to Get Started

Whether you’re a single-family homeowner or a multifamily property owner, here’s how you can take advantage of these updates:

  1. Understand Local Ordinances: Verify how your city or county implements these state-level changes.
  2. Plan Your Project: Decide which type of ADUs work best for your property.
  3. Seek Professional Help: Consult with architects, contractors, and legal experts to navigate the permitting process.
  4. Utilize Pre-Approved Plans: Many local agencies now offer pre-approved ADU designs to simplify the process.

Conclusion

California’s updated ADU laws are a major step forward in addressing the state’s housing challenges. From enabling more detached ADUs on multifamily properties to allowing single-family homeowners to add up to three units, these changes provide unprecedented opportunities for property owners to create meaningful and sustainable housing solutions.

If you’re ready to explore the potential of ADUs on your property, start by researching your local ordinances and contacting housing experts to guide you through the process. The possibilities are endless, and the benefits extend far beyond individual property lines.