ADU.app Research Blog https://adu.app/blog Research-backed ADU articles about costs, California laws, financing, permits, rental planning, construction choices, and floor plans. en-us Tue, 08 Sep 2026 00:00:00 GMT California ADU Laws in 2026: What Homeowners Should Check https://adu.app/blog/california-adu-laws-2026 https://adu.app/blog/california-adu-laws-2026 Wed, 02 Sep 2026 00:00:00 GMT A homeowner-focused overview of the state framework, local review, property checks, permits, and official sources. ADU Cost per Square Foot in California: A Transparent 2026 Planning Model https://adu.app/blog/adu-cost-per-square-foot-california https://adu.app/blog/adu-cost-per-square-foot-california Wed, 02 Sep 2026 00:00:00 GMT See how ADU cost per square foot changes by size and approach using a transparent planning model. How Much Does a 500 Sq Ft ADU Cost? An Example Budget https://adu.app/blog/500-square-foot-adu-cost https://adu.app/blog/500-square-foot-adu-cost Wed, 02 Sep 2026 00:00:00 GMT Compare early 500 sq ft ADU budget scenarios for detached, attached, garage-conversion, and prefab approaches. How Much Does an 800 Sq Ft ADU Cost? An Example Budget https://adu.app/blog/800-square-foot-adu-cost https://adu.app/blog/800-square-foot-adu-cost Wed, 02 Sep 2026 00:00:00 GMT Compare transparent 800 sq ft ADU cost scenarios, planning ranges, and scope assumptions. ADU Financing Options: Cash, HELOCs, Renovation Loans and Refinancing https://adu.app/blog/adu-financing-options https://adu.app/blog/adu-financing-options Wed, 02 Sep 2026 00:00:00 GMT Compare common ADU financing paths and the risks, fees, documentation, and lender questions behind each one. How Long Does an ADU Permit Take in California? https://adu.app/blog/adu-permit-timeline-california https://adu.app/blog/adu-permit-timeline-california Wed, 02 Sep 2026 00:00:00 GMT Understand plan-review timing and the complete project schedule from feasibility through final inspection. Garage Conversion vs. Detached ADU: Cost, Privacy and Project Risk https://adu.app/blog/garage-conversion-vs-detached-adu https://adu.app/blog/garage-conversion-vs-detached-adu Wed, 02 Sep 2026 00:00:00 GMT Compare cost, privacy, existing-condition risk, flexibility, utilities, and long-term use. Prefab vs. Stick-Built ADU: Which Is Better for Your Property? https://adu.app/blog/prefab-vs-stick-built-adu https://adu.app/blog/prefab-vs-stick-built-adu Wed, 02 Sep 2026 00:00:00 GMT Compare installed cost, design flexibility, schedule, access, permits, and contract responsibility. How to Estimate ADU Rental Income Without Overstating Returns https://adu.app/blog/adu-rental-income-calculation https://adu.app/blog/adu-rental-income-calculation Wed, 02 Sep 2026 00:00:00 GMT Use a transparent worksheet for rent, vacancy, operating costs, reserves, financing, and local rental rules. ADU Floor Plan Checklist: 15 Questions Before You Choose a Layout https://adu.app/blog/adu-floor-plan-checklist https://adu.app/blog/adu-floor-plan-checklist Wed, 02 Sep 2026 00:00:00 GMT Test layout, storage, privacy, accessibility, furniture, utilities, daylight, and long-term flexibility.