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Discovering Junior Accessory Dwelling Unit in California

Unlocking Housing Potential Through Accessory Dwelling Units

Welcome to the exciting world of JADUs (Junior Accessory Dwelling Units)! This blog helps you understand and explore the different types of housing units in California.



Meaning and Purpose:


JADUs, also known as granny flats or in-law units, are secondary living spaces located on the same property as a single-family home. They can be attached or detached from the main house and offer independent living quarters for various purposes, such as:

  • Accommodating aging family members or relatives

  • Providing rental income

  • Creating a home office or studio space

  • Housing guests or temporary occupants

Benefits of Building a JADU:


Investing in a JADU comes with a multitude of advantages:

  • Increased property value: JADUs add valuable square footage to your property, potentially boosting its market value.

  • Enhanced income potential: Renting out the JADU can generate a steady stream of passive income.

  • Improved housing flexibility: JADUs provide additional living space for various needs, allowing you to adapt to life changes.

  • Community benefits: JADUs contribute to denser housing options, potentially addressing California's housing shortage.

Who Benefits from JADUs?


The beauty of JADUs lies in their versatility. They cater to a diverse range of individuals and families:

  • Homeowners seeking additional income or living space

  • Families caring for elderly relatives or adult children

  • Young professionals or students seeking affordable housing options

  • Investors looking for lucrative real estate opportunities

Building a JADU: Timeframe and Considerations


The timeline for building a JADU can vary depending on factors like size, complexity, and permitting processes. In general, expect the process to take anywhere from 6 months to a year. Here's a rough breakdown:


  • Planning and design (1-2 months): Obtain permits, finalize architectural plans, and secure financing.

  • Construction (3-6 months): Build the JADU according to approved plans and safety regulations.

  • Inspections and finalization (1-2 months): Pass final inspections and obtain occupancy permits.

Latest Laws and Regulations (ABs) Regarding JADUs in California (2023-2024):


Stay informed about the ever-evolving JADU landscape in California. Here are some key recent laws:


AB 68: Streamlined Permitting Process for JADUs


Before AB 68, getting permits for JADUs in California was often long and complicated, which discouraged builders. This law aimed to simplify the process by:


  • Setting a standard for JADU permits across the state: Local governments must adhere to specific rules, ensuring uniformity for builders.

  • Reducing fees and timelines: The law limits fees associated with JADU permits and establishes expedited timelines for processing applications.

  • For certain projects, local governments must give permits without optional review, making the process more efficient.

AB 883: Allowing Two JADUs per Property


California's housing shortage continues. AB 883 permits homeowners to build two JADUs per property, with specific conditions.


  • Lot size requirements: The property must be large enough to comfortably accommodate two JADUs without compromising safety or livability.

  • Off-street parking: Adequate off-street parking must be available for both the main house and the JADUs.

  • Zoning compliance: The project must comply with all applicable zoning regulations, including setbacks and height restrictions.

This law allows homeowners to make more money, house family members, or add more living space to their properties.


AB 140: Encouraging JADU-Friendly Policies


While AB 68 and AB 883 establish statewide JADU regulations, AB 140 takes a different approach. It incentivizes local governments to adopt policies that further encourage JADU construction:


Density bonuses: Local governments can offer extra development rights or density bonuses to encourage JADU construction.


Financial assistance programs: The law encourages the creation of programs to help homeowners who want to build JADUs. Local governments can offer density bonuses to encourage JADU construction. The law encourages financial assistance programs for homeowners who want to build JADUs.


The state provides model JADU ordinances to make the permitting and approving process easier. AB 140 aims to make California more JADU-friendly by promoting JADUs actively. AB 140 aims to make California more JADU-friendly by encouraging local governments to actively promote JADUs.


The Impact of These Laws:

California just made it easier to build small houses (JADUs) in backyards! They want more of these "granny flats" to help with the housing shortage. Here's how they're doing it:


  • Faster permits: Building a JADU is quicker now, with less paperwork and waiting.

  • More space: You can now build two JADUs on some properties, giving you more options.

  • Cities and towns should make it easier to build JADUs in their areas.

Remember, these are just the highlights. Each law has its own details, so if you're thinking about building a JADU, talk to an expert like an architect or contractor.


Why Californians Need JADUs:


California faces a persistent housing shortage, coupled with rising housing costs. JADUs offer a promising solution by:


  • Creating more housing units without sprawling development

  • Providing affordable housing options for diverse demographics

  • Promoting intergenerational living and family support


Discovering JADUs: Your Next Step


Building a JADU can be a rewarding and strategic investment. Consider consulting with experienced professionals like architects, contractors, and real estate agents to navigate the process smoothly. Remember, thorough research, careful planning, and adherence to regulations are key to successfully unlocking the potential of JADUs.


This blog is just the beginning of your JADU journey. We encourage you to explore further, ask questions, and discover the possibilities waiting within your own property. Let's unlock the potential of JADUs and contribute to a more vibrant and accessible housing landscape in California!


Why Work with ADU Builders Group:


Choosing the right partner for your JADU project is paramount. ADU Builders Group is a distinguished and experienced team specializing in ADU construction, including JADUs. Their expertise ensures compliance with local regulations, delivering quality craftsmanship, timely completion, and cost-effectiveness. Collaborating with ADU Builders Group offers homeowners a seamless journey into the realm of JADUs.


JADUs in California are reshaping the housing landscape, providing a pragmatic solution for homeowners and renters alike. To consider JADUs, it's important to understand their meaning, purpose, rules, time, expenses, and trends. ADU Builders Group helps homeowners confidently start their JADU journey, creating affordable and eco-friendly housing in California.


Call us at (408) 413-3373 and let's talk about your ADU plans!


Visit to schedule a free phone consultation






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