Insights

California’s New ADU Handbook: What’s Changed for 2025

California’s commitment to addressing housing challenges through accessory dwelling units (ADUs) continues to evolve, with several significant pieces of legislation, including AB 2533, SB 1211, and AB 1033, reshaping the landscape in 2024 and 2025. The California Department of Housing and Community Development (HCD) recently released their 2025 ADU handbook, reflecting these legislative changes and providing updated guidance for property owners and industry professionals.

How to Get an ADU Permit in California

There are many reasons you may want to build an accessory dwelling unit (or ADU) on your property in the great state of California. Maybe you want to create an additional living space for a family member. Or you may want to rent it out on a long-term basis for someone who can call it home, all while increasing your property’s value.

How Much Does It Cost To Build an ADU in California?

Logic would dictate that an accessory dwelling unit (ADU) — a type of housing smaller than most single-family residences — would cost less to build. In fact, the opposite is true, especially for homeowners who want to construct a custom ADU on their property. There are often more costs involved in building an ADU than simple construction or furnishing costs.

What Is Considered an ADU in California?

Accessory dwelling units (ADUs) are known by many names — granny flats, coach houses, ohana units, backyard bungalows, and alley flats — but it can be challenging to find a definitive answer as to what characterizes an ADU. If you’re considering adding an ADU to your property, understanding what you’re getting into is the first, often overlooked, yet critical step in a lengthy process.

How To Get an ADU Grant in California

Despite the potentially steep initial investment, an accessory dwelling unit (ADU) can provide measurable value to you and your home. However, figuring out how to fund your ADU project can be challenging, especially if you’re already covering a mortgage payment for your primary home.