1-Bedroom Apartments for Rent in South San Francisco Under $4,000
South San Francisco is the Industrial City — biotech HQs (Genentech, and many others), the 'South San Francisco The Industrial City' hillside sign, and a South SF BART station plus Caltrain and SamTrans. More affordable than SF proper; commuter-heavy.
27 listings available — updated June 3, 2026, refreshed every 3 hours
1120 Mission Rd, 1120 Mission Rd APT 5, South San Francisco, CA 94080
$2,650/mo
455 Alida Way, 455 Alida Way #1B-1Ba-700Sqft, South San Francisco, CA 94080
$2,300/mo
522 Mayfair Avenue DS01 - 104, 522 Mayfair Ave #Ds01-03, South San Francisco, CA 94080
$2,195/moStop messaging landlords one by one
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Frequently asked
How many 1-bedroom apartments are available in South San Francisco right now?
As of June 3, 2026, Rentomatics tracks 27 1-bedroom apartments for rent in South San Francisco under $4,000/month. Listings refresh every 3 hours from Craigslist, Zumper, and other Bay Area sources.
What is the rent for a 1-bedroom in South San Francisco?
Among current Rentomatics listings, 1-bedroom apartments in South San Francisco start at $1,300/month, with an average of $2,376 and a median of $2,350/month. Prices reflect 27 active listings updated June 3, 2026.
How often are Rentomatics listings updated?
Rentomatics refreshes listings every 3 hours from Craigslist, Zumper, and other Bay Area rental sources. Stale listings are removed within 5 days of last sighting.
Does Rentomatics show broker fees?
Yes. Every Rentomatics listing displays whether a broker fee applies, and users can filter to show only no-fee apartments.
What is South San Francisco like?
South San Francisco is the Industrial City — biotech HQs (Genentech, and many others), the 'South San Francisco The Industrial City' hillside sign, and a South SF BART station plus Caltrain and SamTrans. More affordable than SF proper; commuter-heavy.