San Diego Housing Market Faces Sales Decline

As mortgage rates climb to 7.4%, the region experiences a 9.3% drop in annual home sales.

Updated on Oct. 27, 2026 in Residential

Bold vector illustration of a stucco residential home facade, evoking the cooling San Diego housing market. — San Diego home sales fell 9.3% in September 2026 as mortgage rates reached 7.4%, intensifying affordability challenges for local buyers. AI Illustration. Upload story photo >

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Given current interest rates and home prices, is now a good time to buy a home?

In August 2026, San Diego home prices saw a modest annual increase of 2.29%. However, by September 2026, closed home sales across the county fell by 9.3% amid shifting economic conditions.

Why it matters

Higher mortgage rates, persistent inflation, and rising gasoline prices are placing significant strain on buyer affordability. These factors have contributed to a softening market where inventory has reached 8,043 available homes.

The median price for single-family homes in San Diego remained at approximately $1 million throughout 2026. Additionally, national 30-year fixed-rate mortgages reached 7.4% in early October 2026.

The players

S&P CoreLogic Case-Shiller Index

This widely followed economic indicator tracks the value of single-family housing across major U.S. metropolitan areas using a repeat-sales methodology.

The details

Buyers in this cooling market are increasingly relying on seller concessions, including closing cost credits, rate buydowns, and outright price reductions to finalize deals. The Case-Shiller Index, which placed San Diego at No. 7 in its 20-city ranking for August 2026, utilizes a three-month rolling average of repeat sales to measure these trends.

June 2026: San Diego ranked 10th in the S&P Case-Shiller Index.
August 2026: Home prices in the area increased by 2.29% annually.
September 2026: Closed home sales fell by 9.3% compared to the previous year.
Early October 2026: National 30-year fixed-rate mortgages rose to 7.4%.

Culture Shift

The San Diego housing data reflects a broader trend of cooling markets captured by the S&P CoreLogic Case-Shiller Index. This shift illustrates a transition away from rapid pandemic-era price escalation toward a period of inventory accumulation and demand stabilization.

Prospective buyers should anticipate more negotiation leverage, such as rate buydowns and seller credits, as the market balances. Conversely, current homeowners may see price growth flatten as affordability constraints continue to limit the pool of active buyers.

The takeaway

The combination of high interest rates and current inventory levels suggests a more selective environment for real estate participants. Buyers and sellers should focus on long-term affordability metrics rather than relying on the rapid appreciation seen in previous years.