Practical guidance on ADU policy, permitting, and construction in San Diego — written from the field by the team at Troia Construction.
California law sets clear deadlines for how quickly cities must process ADU permit applications. Understanding those rules before you submit can protect your project timeline and help you avoid costly delays.
San Diego County unanimously approved an ordinance implementing AB 1033, allowing ADUs in unincorporated areas to be sold separately from the main home. Here's what property owners need to understand before they build.
San Diego approved roughly 14,500 housing permits in 2025 — nearly twice the prior year. The number is encouraging, but builders warn that permit approvals and completed homes are two very different things.
California needs roughly 180,000 new homes per year and is building about half that. As prices hold near record highs, ADUs are emerging as one of the most practical ways for individual property owners to respond.
