San Francisco gets the headlines with double-digit rent growth, but San Mateo County, the stretch of Peninsula between the city and Silicon Valley, is building a quieter, more consistent story of its own.
The submarket breakdown: San Mateo-Burlingame, Redwood City-Menlo Park, and Foster City all posted rent growth around 4% year-over-year as of March, while South San Francisco-San Bruno-Millbrae outpaced them at over 6%. Across most County submarkets, Class B and C vacancy is sitting at or below 3%, and new construction remains scarce. San Mateo County is absorbing the bulk of what little supply the broader San Francisco metro is adding, while San Francisco County itself sees almost none.
The employer base helps explain why: Redwood City is home to Oracle and Electronic Arts. Foster City is Visa’s headquarters. San Mateo itself sits within reach of Google, Meta, Sony, and Box, with direct access via Caltrain, Highway 101, and State Route 92 connecting residents to job centers on both ends of the Peninsula. That combination, established employers plus multiple transit corridors, keeps renter demand durable even as the broader Bay Area job market works through some softness.
We're seeing that durability firsthand: Our $7.75 million sale of 225 Catalpa St. in San Mateo, a 16-unit community just blocks from downtown, drew strong investor interest after the seller completed a voluntary seismic retrofit, a new roof, and updated windows, capital improvements that stood out in a submarket where vintage assets are proving they can compete with newer product. In Belmont, our $20.5 million sale of El Dorado Apartments, a 39-unit community, followed the same County-wide pattern: Class A vacancy across the metro trended above 10%, while Class B and C assets like El Dorado sat in a submarket with vacancy under 4%, helping drive a per-unit price above $525,000.
For investors evaluating supply-constrained Bay Area submarkets, San Mateo County isn’t the market with the flashiest headline number. It is the one where the fundamentals line up quietly across submarkets.
