SB 9 in California: Understanding the Impact on ADUs

SB 9 in California revolutionizes residential zoning to tackle the housing crisis. It simplifies adding Accessory Dwelling Units (ADUs) and subdividing properties. In this article, we explore its impact on your ADU project in order to clarify the situation for you.

What is SB 9?

Senate Bill 9 (SB 9), also known as the California Home Act, marks a significant shift in residential zoning laws across the state. 

This legislation, aimed at addressing the statewide housing shortage, allows homeowners like you to create more housing units on properties zoned for single-family use. 

Understanding SB 9 is crucial for anyone considering investing in ADUs, so it helps to be aware of this legislation.

Effect on ADU Development

SB 9 facilitates the process of adding ADUs or subdividing a residential lot by easing zoning restrictions. 

Specifically, it enables homeowners to convert a single-family lot into a duplex or subdivide the property to build additional housing units. Therefore, homeowners can potentially double or even triple the number of units on a single lot.

This development naturally expands the scope and feasibility of adding ADUs, offering a new avenue for increasing housing density.

Permitting Process

The permitting process under SB 9 is streamlined to encourage the development of more housing units. While local municipalities retain some oversight, the state mandates a more straightforward process, reducing the time and complexity involved in obtaining approvals. 

Homeowners interested in taking advantage of SB 9 provisions should familiarize themselves with both state requirements and local ordinances to ensure compliance.

Implications for Homeowners and Communities

The implications of SB 9 for homeowners are profound, offering the opportunity to significantly increase property value and contribute to alleviating the housing crisis. 

For communities, this legislation represents a pivotal change, potentially transforming the character of single-family neighborhoods and increasing population density. However, it also raises concerns about infrastructure, resources, and the preservation of neighborhood aesthetics.

SB 9 and Local Zoning Laws

While SB 9 sets the framework for increased housing development, local zoning laws still play a critical role. Homeowners must navigate these local regulations, which can vary widely across California’s cities and counties, to understand the specific requirements and limitations for their projects.

SB 9 represents a bold step towards addressing California’s housing shortage by making it easier to develop ADUs. However, it can be tricky to navigate this landscape on your own.

At GoldenADU, our familiarity with such legislation helps us guide you toward the smooth completion of your housing project.

Contact us today at 213-693-2405 to get your free ADU consultation. From legislation like SB 9 in California to investment fundamentals, we make your ADU journey smooth and easy for you!


What is SB 9?

SB 9, the California Home Act, is legislation that allows for the development of more housing units on lots zoned for single-family use.

How does SB 9 impact ADU development?

It simplifies adding ADUs or subdividing properties by easing zoning restrictions, potentially increasing housing density.

What should homeowners know about the SB 9 permitting process?

Homeowners should understand both state and local requirements, as SB 9 streamlines the process but does not eliminate local oversight.

How do local zoning laws interact with SB 9?

While SB 9 provides a state-level framework, local zoning laws will dictate specific project requirements and limitations.

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