One of the unique aspects of homeownership in the Bay Area is the impact of Proposition 13, which has long provided significant property tax savings for those who have owned their homes for many years. As longtime residents and real estate professionals who have seen the market evolve over decades, we’ve witnessed how Prop 13 helps many of our neighbors keep their property taxes stable—capped at a 2% annual increase based on their original purchase price. However, between 2017 and 2025, assessed property values have been rising more quickly than in the past, which means the difference between what homes are assessed at and their actual market value is getting smaller in some communities. This shift not only affects local revenue, but it’s also changing the conversation about tax equity across neighborhoods. Understanding these trends is essential for anyone considering buying or selling in today’s complex market, and it’s something we pay close attention to in our work in the San Ramon Valley.
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