The average home size in the United States hovers in the mid-2000s. For some home buyers, 2500 square feet can feel like a palace. For others, 2500 square feet is tight quarters. Typical home sizes in San Diego are consistent with national averages. In this post, I will be focusing well beyond what is typical or average. Instead, we’ll be looking at homes 5, 10, or 20+ times the average home size. Join me as we explore the top 15 biggest houses in San Diego. These magnificent homes are on the market and ready to purchase right now.