What is SB 13? Your Guide to California’s ADU Law

So, you’ve heard about SB 13 and you’re wondering what it’s all about? In a nutshell, it’s a California law that makes building an Accessory Dwelling Unit (ADU) a whole lot easier for homeowners. Think of it as the state’s way of cutting through the red tape and costs that used to make ADUs a headache. Whether you’re eyeing extra living space, rental income, or a spot for family, SB 13 is here to help—and I’m here to break it down for you.

Why Did SB 13 Come Along?

California’s been wrestling with a housing crunch for ages—rents are through the roof, home prices are wild, and finding an affordable place feels impossible for a lot of folks. ADUs (you know, those cute granny flats, in-law units, or backyard cottages) are a smart fix, but they used to come with too many hurdles. SB 13 showed up to slash the paperwork, lower the costs, and get more of these little homes popping up across the state. It’s all about making housing work better for everyone.

What’s SB 13 Actually Doing?

This law brings some game-changing perks to the table. Here’s the rundown:

What’s Changing	What It Means
No Impact Fees	ADUs under 750 sq. ft. skip those pricey fees—saving you big bucks.
No Owner-Occupancy Rule	You don’t have to live on-site anymore—rent out the whole place if you want!
Faster Approvals	Cities have to green-light permits in 60 days, not months.
Cheaper Utilities	No forced new hookups for some ADUs—keeps costs down.
Easier Conversions	Turn that old garage into an ADU, even if it’s not “perfect” by zoning standards.

Pretty cool, right? It’s like California said, “Let’s make this simple.”

How Does SB 13 Help You?

If you’re a homeowner dreaming of an ADU, SB 13 is your new best friend. Here’s why:

✔ Saves Money: Skipping impact fees for small ADUs can keep thousands in your pocket.

✔ Rental Freedom: No need to live there yourself—rent both the house and ADU for max income.

✔ Quick Turnaround: Permits in 60 days mean less waiting around.

✔ Garage Glow-Ups: Converting existing spaces like garages just got way less complicated.

It’s all about making ADUs doable, not daunting.

SB 13 vs. SB 1211: What’s the Deal?

You might’ve heard of SB 1211 too—another ADU-friendly law. They’re like teammates with different strengths:

Law	What It Brings
SB 13	Cuts fees and owner rules.
SB 1211	Speeds up permits and clears zoning snags.

Together, they’re a powerhouse duo, making ADUs cheaper and faster to build.

Who Can Use SB 13?

Ready to jump in? Here’s what you need:

• A property in California.

• An ADU that follows local building codes and zoning laws.

• If you’re converting something (like a garage), it’s got to be safe and livable.

Not sure if your place qualifies? The folks at ADUnest can steer you in the right direction.

Busting Some SB 13 Myths

There’s some confusion floating around about SB 13—let’s clear it up:

1. “It Forces You to Build an ADU” ❌

   • Nope: It just makes it easier if you want to—no pressure here.

2. “Any Property Can Have One Now” ❌

   • Not Quite: Local zoning still calls some shots.

3. “All ADUs Are Fee-Free” ❌

   • Close, But: Only those under 750 sq. ft. dodge impact fees—bigger ones might not.

How to Get Started with SB 13

Thinking about building an ADU with SB 13 in your corner? Here’s your game plan:

1️⃣ Check the Rules: Make sure your property fits local zoning.

2️⃣ Plan It Out: Team up with a designer or architect for your ADU blueprint.

3️⃣ File the Permit: Submit your application to your city or county.

4️⃣ Get Some Help: ADUnest can guide you from start to finish—permits, building, all of it.

It’s simpler than it sounds, especially with the right support.

Wrapping It Up: SB 13’s Big Impact

With SB 13, California’s saying yes to ADUs in a big way—ditching impact fees, dropping owner rules, and speeding up approvals. Whether you’re after rental cash, a family space, or a boost to your property’s value, this law knocks down the old roadblocks. It’s a win for homeowners looking to make their space work harder.

Need a hand getting started? ADUnest has your back—reach out for expert help on your ADU journey!

Got questions about SB 13? Leave them in the comments, and  we will get back to you soon!