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The artificial intelligence boom is reshaping the Bay Area housing market, not just in rising home prices but in the amount of cash buyers are putting down on homes.
A new report from Realtor.com found that luxury homebuyers in the Bay Area are continuing to make unusually large down payments even as mortgage rates have dropped, a trend that researchers say reflects the growing influence of AI-generated wealth.
In 2025, buyers purchasing luxury homes in the Bay Area put down a median of 35% of the purchase price, according to the report. That’s up from 28.4% before mortgage rates surged in 2023 and remains well above earlier levels even as borrowing costs have come down. On a $3 million home — roughly the entry point for luxury housing in the region — that difference amounts to nearly $200,000 more cash at closing.
The Bay Area stands apart from other affluent housing markets. In Miami, Austin and New York, luxury buyers also increased their down payments and borrowed less when mortgage rates spiked in 2023 to keep monthly payments more manageable. But as borrowing costs eased, those figures largely returned to pre-2023 levels. The Bay Area did not follow the same pattern.
“The Bay Area down payment data tells us something the mortgage rate story can’t explain on its own,” said Jiayi Xu, economist at Realtor.com. “The persistent elevation in down payments … points to a localized wealth effect that is reshaping who can compete at the top of the market.”
According to the report, the difference may be tied to the Bay Area’s concentration of artificial intelligence companies and the growing number of employees who have been able to cash out stock in those firms as their values have soared.
As AI companies stay private longer, firms like OpenAI, Anthropic, Databricks and Stripe have begun, starting around 2024, allowing employees to sell shares while still private. This gave workers access to money that would otherwise have remained tied up until a public offering, according to the report.
“This is a sharp departure form the traditional IPO route,” the report states. Much of that newly unlocked wealth, the report suggests, has flowed directly into the housing market.
That timing is significant, according to the report’s findings. Mortgage rates and AI wealth surged simultaneously in 2023, making it difficult to separate their effects. But by 2024 and 2025, rates had begun to decline while Bay Area down payments remained elevated.
Luxury down payments in the Bay Area peaked at 38.3% in 2023 before settling at 35% in 2025. In contrast, Miami, Austin and New York all moved back toward their historical norms, the data shows.
“What sustained elevated down payments through 2024 and 2025 is something specific to the Bay Area: a dense, AI-native workforce with liquidity that didn’t exist before,” the report states.
The impact is most visible in the luxury market, but researchers say it may be spreading to more affordable price points as well.
Among homes priced between $750,000 and $1.5 million, the median down payment has remained stable at 20%, but the share of buyers putting down more than 30% has increased. Realtor.com suggests that some AI workers are entering the market with far more cash than traditional buyers, while others who have been priced out of higher-end homes are turning to less expensive properties and bringing larger budgets with them.
The result is intensifying competition across multiple tiers of the Bay Area housing market.
As AI firms continue to grow and remain private longer, researchers expect the trend to continue.
“A specific, concentrated source of new wealth is reshaping competition at the top of the Bay Area market,” Xu said. “And it’s not going away.”
