What does it actually cost to build an ADU in California — and why is the number almost never what people expect? Accessory dwelling units have become one of California's most talked-about real estate strategies, but ADU expert Chasin Prather joins hosts Daniel Gutierrez and Shannon Dempsey to explain why they're far more complicated than most people realize. Chasin shares real numbers from his own projects — including a $209,000 ADU generating a 15% cash-on-cash return — alongside the guiding principle behind his entire approach: "Just because you can doesn't mean you should." The conversation covers permitting, financing, soft costs, and the "cannibalization effect" that can quietly lower a property's rental value. The episode doesn't shy away from the hard lessons either. Chasin recounts a fight with a water district that threatened to shut off service to tenants over a retroactive $12,000 fee, and breaks down why labor — not materials — usually determines whether an ADU project stays on budget. Daniel adds his own experience navigating a current build, including an unexpected underground electrical upgrade. Is an ADU right for every homeowner? Not even close — but for the right property and the right planning, the returns can be extraordinary. Chasin Prather has spent 22 years in California real estate, licensed since age 19, and has become one of the state's most experienced accessory dwelling unit (ADU) investors. Since completing his first ADU project in 2016, Chasin has built, permitted, rented, and sold numerous ADUs across Orange County and Napa Valley, developing a hands-on, owner-builder approach to every project. He now helps other homeowners and investors navigate ADU planning, financing, and construction throughout California. Learn more at chasinre.com/adu In This Episode: (00:00) Welcome & meet ADU expert Chasin Prather (02:38) "Just because you can doesn't mean you should" — ADU ground rules (06:51) What is an ADU? Origins from 2016 to today (10:44) House hacking: cutting a mortgage in half with one ADU (21:45) Real ADU numbers: cost, rent, and cash-on-cash return (26:02) The cannibalization effect on resale and rental value (32:41) ADU vs. JADU, and how one lot becomes six units (41:08) Hidden soft costs: architects, surveys, and utility surprises (52:11) Misconceptions, the 10% contingency rule, and Daniel's own ADU build Like and subscribe to hear all of our future episodes! About The Show: Hosted by lifelong friends Daniel Gutierrez, an innovative entrepreneur and CEO of AllView Real Estate, and Shannon Dempsey, a seasoned agent with a communications and community relations background, this podcast shares insider insights to help you buy, sell, rent, and invest with confidence. From market trends and ROI-focused upgrades to property management tips and investment strategies, Daniel and Shannon break down complex topics into actionable steps. Along the way, you’ll hear real stories, lessons learned, and expert guidance you won’t find anywhere else. Tune in to AllView 360: All Things Real Estate and get the tools you need to succeed in today’s market. Resources: Chasin Prather — www.chasinre.com/adu Chasin Prather — www.chasinre.com Chasin Prather — DRE#01447886 / NMLS#1130391 / B: 657-282-1877 Chapters (00:00:00) - All-Things Real Estate Podcast(00:01:19) - Real Estate Broker on The Pod(00:02:32) - Do Prefab ADUs Make Sense For You?(00:05:16) - Pre-Approved Permits(00:06:51) - Accessory Dwelling Unit Zoning(00:10:44) - House Hacking: Adding an ADU to Your Home(00:13:07) - Reveal: The Napa Project(00:18:36) - HGTV's Floor and Decor: Not Even Close to(00:19:07) - ADUs vs Construction Contractors(00:21:42) - ADU Builds for Retirement Age Families(00:26:14) - ADU cannibalization on single family homes(00:31:33) - How to Build a Junior ADU in California(00:37:33) - In the Elevator With Homeowners(00:38:36) - Should You Permit a Bootleg ADU?(00:41:08) - What is a Land Survey and How to Do It?(00:43:50) - Do ADU Construction Costs Really Matter?(00:48:46) - Homeowners: Quality vs. Affordability(00:51:09) - Did You Keep a Third Structure at Your Napa Home?(00:52:05) - What Are the Benefits of Adding an ADU?(00:57:03) - Do You Need a Licensed Contractor for Your Home?(00:57:53) - All-View Real Estate: Perspective 360