Maxed-Out Lot? You Can Still Build an ADU in San Diego Home › Articles › Maxed-Out Lot ADU Told Your Lot Is “Maxed Out”? You Can Still Build an ADU in San Diego By IL Total Design & Build · Licensed San Diego design-build contractor, CSLB #1058676 · Last updated July 2026 Every few months
La Jolla has the highest ADU rental rates in San Diego County — and some of the tightest Coastal Zone restrictions. Here's what lot constraints and premium construction costs mean for your project.
SB9 lets you split your lot or build a duplex, while ADUs add a separate unit without subdividing. Here's a clear breakdown of which path makes more sense for San Diego homeowners in 2026.
An ADU adds rental income, increases property value, and gives you housing flexibility — for aging parents, adult kids, or passive income. Here's a full breakdown of why San Diego homeowners build them.
California overhauled ADU permitting rules to make the process faster and cheaper. Here's what the new regulations changed and what it means for homeowners thinking about building in San Diego.
