Thinking about an ADU? Schedule your personal consultation

Join us for a learning adventure!

We are a nonprofit dedicated to educating homeowners in Napa and Sonoma Counties about how to plan, permit, and build Accessory Dwelling Units —and how to rent out your ADU, if you choose to do so.

Register below for our 100% free upcoming ADU webinars and events!

We know that some homeowners are interested in virtual ADU tours. For now, we recommend you check out our ADU stories for inspiration and a peek into real-world ADUs.

Upcoming Webinars

Webinar

Webinar: Virtual Fair Housing Training for ADU Owners and Landlords

October 15, 2025

ADU Tours, Workshop

Marin ADU Fair & Open House

October 4, 2025

ADU Center Office Hours June 26, 4:30-6:00 PM

June 26, 2025

Webinar Library

Watch our Calistoga ADU Webinar!

Webinar: How to Build an ADU in the City of Napa

Webinar: How to Build an ADU in the City of Santa Rosa

ADU 101, Getting Started, Learning the Rules, Permitting, Webinar

ADUs 101 Webinar for Napa & Sonoma County Homeowners

ADU 101, Getting Started, Learning the Rules, Permitting, Webinar

Webinar: How to Build an ADU in Sonoma County

ADU 101, Getting Started, Learning the Rules, Permitting, Webinar

Building ADUs in Napa & Sonoma Counties Webinar

ADU 101, Budgeting & Finance, Webinar

How to Finance Your ADU Webinar

ADU 101, Permitting, Webinar

How to Build an ADU in Sebastopol Webinar

Permitting, Webinar

Part I: How to Build an ADU in Healdsburg Webinar

Part II: How to Build an ADU in Healdsburg Webinar

ADU 101, Webinar

Accessory Dwelling Unit Design Roundtable Webinar

Part II: How to Build an ADU in Healdsburg

ADU Building Roundtable Webinar

ADU 101, Budgeting & Finance, Webinar

The Financial Case for Building an ADU Now & Not Later: Webinar

All You Need to Know About Prefab, Modular & Manufactured ADUs: Webinar

ADU 101, Getting Started, Learning the Rules, Permitting, Webinar

How to Create an ADU Permit Application Webinar

ADU 101, Budgeting & Finance, Construction, Design, Getting Started, Learning the Rules, Webinar

Webinar: Accessory Dwelling Unit Roundtable Conversation + Live Q&A

Budgeting & Finance, Webinar

Webinar: A New Way to Finance Building Your Dream ADU!

ADU 101, Webinar

Seminario web: Cómo construir y pagar por una unidad de vivienda accesoria

Webinar: Real-world ADU stories from your neighbors!

Budgeting & Finance, Webinar

Webinar: Ask Us Anything!

Budgeting & Finance, Webinar

Webinar: Ask Us Anything! – Part 2 – Nov 2, 2023

Budgeting & Finance, Webinar

Webinar: Paying for Your ADU – Learn from the Experts

Announcements, Budgeting & Finance, Getting Started

Paying for Your ADU & Consult Special

Budgeting & Finance, Webinar

Webinar: Explaining Napa County’s Affordable ADU Loan Program