Prefab ADU vs Custom-Built: The Honest California Comparison (2026)
The short version A prefab ADU is built in a factory and delivered to your lot; a custom (stick-built) ADU […]
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L Square Journal
Design & ADU Types
Detached, attached, prefab, custom, two-story, tiny-home, and layout guidance for choosing the right ADU format.
Two-Story ADUs in Orange County: Height Rules, Costs, and When They Make Sense
The short version Yes, you can build a two-story ADU in Orange County — but the path decides how hard […]
Read article →Energy-Efficient ADUs in California: Long-Term Savings
Unlocking Long-Term Prosperity with Energy-Efficient California ADUs in San Ysidro Accessory Dwelling Units (ADUs) represent a significant opportunity for Homeowners […]
Read article →Casita vs ADU: Which One Should You Choose? (2026)
The short version In Southern California, a “casita” is usually the same thing as an ADU — but “casita” is […]
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