JADU California: Junior ADU Rules, Costs & Requirements (2026)
Everything California homeowners need to know about JADUs — size limits, permit requirements, owner-occupancy rules, and costs. Updated 2026.
California
ADU Construction in California: The Complete 2026 Guide
Everything California homeowners need to know about ADU construction — costs, permits, timelines, and how to find a verified contractor. Updated 2026.
Cost to Convert Garage to ADU in California (2026)
How much does it cost to convert a garage to an ADU in California? $80,000-$200,000 total installed. Full breakdown by cost category, city, and garage size — plus how it compares to building detached.
ADU Construction Cost in California: The Full Breakdown (2026)
ADU construction cost in California broken down by type, city, and line item. Garage conversion: $80K-$200K. Detached: $180K-$500K. What the bid includes, what it leaves out, and how to avoid the 15-25% overrun that hits most projects.
ADU vs. Room Addition — Which Is Cheaper in California? (2026)
ADU vs room addition cost in California: room additions run $130K-$325K, detached ADUs $220K-$515K. But only the ADU generates rental income. Side-by-side comparison of costs, permits, rental potential, resale value, and when each makes sense.
ADU Financing California: 6 Options for 2026
ADU financing in California: 6 options ranked by accessibility, Fannie Mae’s new rule allowing ADU rental income for mortgage qualification (SEL-2025-08), CalHFA grant status, and why you should never let a contractor arrange your financing.
AB 559 Explained: Will California’s New ADU Fraud Bill Actually Protect Homeowners? (2026)
AB 559 toughens penalties for ADU contractors who violate California’s deposit limits. Sponsored by CSLB after 400+ complaints and the Anchored Tiny Homes and Multitaskr collapses. What the bill does, what it misses, and what to do now.
California’s $25,000 Contractor Bond: Why It Won’t Protect You (2026)
California’s $25,000 contractor bond splits among all victims. Anchored Tiny Homes: 55 claims, $455 per person. The bond hasn’t changed since 2007. ADU projects cost $150K-$400K. Here’s why the bond won’t protect you and what actually will.
Why CSLB Hides Thousands of Contractor Complaints — and What It Means for ADU Buyers (2026)
CSLB closed 10,719+ contractor complaints without investigation between 2020-2024. Anchored Tiny Homes had 55 complaints filed but only 10 were made public. A clean CSLB record doesn’t mean no one complained. Here’s how the system works and how to check beyond it.
What Is the Ideal Size for an ADU in California? (2026 Guide)
The ideal ADU size in California is 600-750 sq ft for most homeowners. Under 750 sq ft waives impact fees. State max is 1,200 sq ft. Guide by use case: rental income, family, and resale value.