How Much Does a Room Addition Cost in San Diego in 2025?
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Planning a Room Addition San Diego in 2025, You're not alone. With rising property values, limited space in urban areas, and increasing housing needs, many homeowners are choosing to expand rather than move. But one of the first and most important questions people ask is: How much does a room addition actually cost in San Diego this year? The answer isn't one-size-fits-all. Costs vary based on a number of factors including the type of addition, the size of the space, the materials used, and the contractor you hire. Still, understanding typical pricing ranges, what affects those costs, and how to plan ahead can help you make a smart and confident decision. Average Cost of Room Additions in San Diego (2025) In 2025, the average cost of a Room Addition San Diego ranges from $300 to $500 per square foo t . Here's a quick breakdown of rough estimates based on size: Small addition (100–200 sq ft): $30,000 to $80,000 Medium addition (250–400 sq ft): $75,000 to $160,000 Large ad...