Official permit data from Lake Forest — updated Mon, Wed & Fri from the county permitting office.
Lake Forest, CA issued 158 building permits in October 2026, up 3% from the prior month. The most active zip code was 92630 with 106 permits. Residential Mechanical - Alteration was the top permit type, making up 30% of all permits issued.
Top 10 zip codes by permit volume — October 2026
October 2026 · Lake Forest, CA
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