San Diego County's New ADU Ordinance: What It Means for Homeowners and Custom Home Builders
The San Diego County real estate landscape shifted meaningfully in early March 2026, when the County Board of Supervisors unanimously passed an ordinance aligning county policy with California's Assembly Bill 1033 — enabling property owners to sell accessory dwelling units (ADUs) separately from the primary residence for the first time. For clients of MDD Homes, this policy shift is not just news — it is a strategic opportunity. This article unpacks the new ordinance, explores its implications for luxury homeowners and residential developers across San Diego County, and explains how a leading design-build firm in San Diego like MDD Homes can help clients leverage this moment to its full advantage. Understanding the New ADU Ordinance: A Landmark Policy Change On March 4, 2026, the San Diego County Board of Supervisors voted unanimously to adopt Assembly Bill 1033, a California state law passed in 2023 that allows jurisdictions to permit ADUs to be subdivided and sold as indivi...
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