Room Addition Cost in San Diego: What You’ll Pay in 2026
Room additions in San Diego run $300-$600 per sq ft in 2026. See real permit costs, neighborhood pricing, and the 30% rule. Get a free estimate today.
Day: July 22, 2026
Room additions in San Diego run $300-$600 per sq ft in 2026. See real permit costs, neighborhood pricing, and the 30% rule. Get a free estimate today.