San Mateo County’s housing market is playing favorites, and it is not subtle about it. Single-family homes are shoving county medians into Bay Area fortune territory while condominiums quietly head the other way, reshaping how deals get done up and down the Peninsula.
Numbers: Houses Near $2.2M, Condos Slide
According to Redfin data that the San Mateo Daily Journal reported, the median single-family home sale price in March was $2.18 million, about 6% higher than a year earlier and roughly 10% above 2024. By contrast, the county condominium median has slipped from about $887,000 in March 2024 to $855,000 in 2025 and to roughly $825,000 last month.
Why Single-Family Homes Are Still Hot
Local brokers point to constrained supply and concentrated tech-era wealth as the main forces pushing detached-home prices higher. “There is a lot of wealth that’s being created,” Compass agent Raziel Ungar told the San Mateo Daily Journal, which notes that roughly one-third of sales in a subsection of Redwood City’s Centennial neighborhood last year were tied to Nvidia employees. In other words, buyers with stock-rich balance sheets are still lining up for backyards and driveways.
Why Condos Are Slipping
Condominiums are facing a tougher crowd. Rising HOA fees, sharply higher master-policy insurance premiums and stricter lender standards for condo projects are combining to cool demand. As Realtor.com has reported, some carriers are backing away from certain HOA risks, which can push monthly costs higher or make units harder to finance at all. The insurance squeeze is not just an accounting headache.
The ripple effects reach into the mortgage world too. The Colorado Sun has examined how Fannie Mae and Freddie Mac rules can render entire condo projects ineligible for conventional loans when insurance coverage, reserve funding or basic maintenance standards fall short, effectively putting some buildings on a do-not-touch list for mainstream lenders.
Marketplace Snapshot And What To Watch
According to Redfin, the countywide median for all home types was about $1.76 million in March, with homes selling in roughly 12 days, a sign that demand is still very real even as single-family and condo segments pull in opposite directions.
That split is forcing a choose-your-own-adventure approach. Buyers chasing single-family homes tend to come in cash-heavy and renovation-minded, ready to compete hard for scarce listings. Condo buyers increasingly have to act like forensic accountants, digging into HOA reserve reports, master-policy renewals and any red flags in project warranties before they even think about writing an offer.
For sellers, the message is just as blunt: pricing and marketing have to match the product. A detached house can lean into location, lot size and long-term upside, while an attached unit may live or die on HOA health, insurance stability and financing options. One-size-fits-all listing strategies are not going to cut it in a market this split.
