Homes under $500K in San Mateo, CA

18 for sale · 48 homes listed · Updated November 9, 2026

2425 South Norfolk Street, San Mateo 94403 $499,998 · 1 bd · 1 ba · 690 sqft
1 Baldwin Avenue Unit 816, San Mateo 94401 $319,000 · 1 bd · 2 ba · 1,100 sqft
1 Baldwin Avenue #816, San Mateo 94401 $319,000 · 1 bd · 2 ba · 1,100 sqft
1 Baldwin Avenue, San Mateo 94401 $299,000 · 1 bd · 1 ba · 813 sqft
1 Baldwin Avenue 915, San Mateo 94401 $299,000 · 1 bd · 1 ba · 813 sqft
44 Lodato Avenue Unit 205, San Mateo 94403 $450,000 · 1 bd · 1 ba · 611 sqft
847 North Humboldt Street 302, San Mateo 94401 $429,000 · 1 ba · 492 sqft
847 North Humboldt Street Unit 302, San Mateo 94401 $429,000 · 1 ba · 492 sqft
1 Baldwin Avenue #915, San Mateo 94401 $299,000 · 1 bd · 1 ba · 813 sqft
847 North Humboldt Street #302, San Mateo 94401 $429,000 · 1 ba · 492 sqft
2425 South Norfolk Street #204, San Mateo 94403 $499,998 · 1 bd · 1 ba · 690 sqft
44 Lodato Avenue #205, San Mateo 94403 $450,000 · 1 bd · 1 ba · 611 sqft
44 Lodato Avenue 205, San Mateo 94403 $450,000 · 1 bd · 1 ba · 611 sqft
1 Baldwin Avenue 816, San Mateo 94401 $319,000 · 1 bd · 2 ba · 1,100 sqft
2425 South Norfolk Street 204, San Mateo 94403 $499,998 · 1 bd · 1 ba · 690 sqft
1531 Marina Court B, San Mateo 94403 $475,000 · 1 bd · 1 ba · 590 sqft
1531 Marina Court Unit B, San Mateo 94403 $475,000 · 1 bd · 1 ba · 590 sqft
1531 Marina Court #B, San Mateo 94403 $475,000 · 1 bd · 1 ba · 590 sqft
707 Fathom Drive #108, San Mateo 94404 Pending $438,000 · 1 ba · 519 sqft
1 Baldwin Avenue, San Mateo 94401 Pending $415,000 · 1 bd · 2 ba · 1,112 sqft
1 Baldwin Avenue 822, San Mateo 94401 Pending $415,000 · 1 bd · 2 ba · 1,112 sqft
249 Elm Street, San Mateo 94401 Pending $498,888 · 1 bd · 1 ba · 740 sqft
249 Elm Street 107, San Mateo 94401 Pending $498,888 · 1 bd · 1 ba · 740 sqft
815 North Humboldt Street, San Mateo 94401 Pending $450,000 · 1 ba · 473 sqft
814 North Delaware Street, San Mateo 94401 Pending $495,000 · 1 ba · 504 sqft
930 Peninsula Avenue 306, San Mateo 94401 Pending $440,000 · 1 ba · 473 sqft
930 Peninsula Avenue #306, San Mateo 94401 Pending $440,000 · 1 ba · 473 sqft
324 Catalpa Street Unit 120, San Mateo 94401 Pending $399,000 · 1 bd · 1 ba · 640 sqft
324 Catalpa Street #120, San Mateo 94401 Pending $399,000 · 1 bd · 1 ba · 640 sqft
324 Catalpa Street 120, San Mateo 94401 Pending $399,000 · 1 bd · 1 ba · 640 sqft
Baldwin Avenue 411, San Mateo 94401 Pending $498,000 · 2 bd · 2 ba · 1,125 sqft
1 Baldwin Avenue 411, San Mateo 94401 Pending $498,000 · 2 bd · 2 ba · 1,125 sqft
707 Fathom Drive #208, San Mateo 94404 Pending $490,000 · 1 bd · 1 ba · 831 sqft
930 Peninsula Avenue Unit 306, San Mateo 94401 Pending $440,000 · 1 ba · 473 sqft
833 North Humboldt Street #504, San Mateo 94401 Pending $450,000 · 1 ba · 473 sqft
853 Woodside Way 136, San Mateo 94401 Pending $439,000 · 1 bd · 1 ba · 687 sqft
853 Woodside Way #136, San Mateo 94401 Pending $439,000 · 1 bd · 1 ba · 687 sqft
853 Woodside Way Unit 136, San Mateo 94401 Pending $439,000 · 1 bd · 1 ba · 687 sqft
707 Fathom Drive 108, San Mateo 94404 Active Under Contract $438,000 · 1 ba · 519 sqft
707 Fathom Drive Unit 108, San Mateo 94404 Active Under Contract $438,000 · 1 ba · 519 sqft
815 North Humboldt Street 409, San Mateo 94401 Active Under Contract $450,000 · 1 ba · 473 sqft
814 North Delaware Street 102, San Mateo 94401 Active Under Contract $495,000 · 1 ba · 504 sqft
707 Fathom Drive 208, San Mateo 94404 Active Under Contract $490,000 · 1 bd · 1 ba · 831 sqft
707 Fathom Drive Unit 208, San Mateo 94404 Active Under Contract $490,000 · 1 bd · 1 ba · 831 sqft
833 North Humboldt Street 504, San Mateo 94401 Active Under Contract $450,000 · 1 ba · 473 sqft
833 North Humboldt Street Unit 504, San Mateo 94401 Active Under Contract $450,000 · 1 ba · 473 sqft
814 North Delaware Street 504, San Mateo 94401 Off market since Oct 2026 $440,000 · 1 ba · 473 sqft
1 Baldwin Avenue 1008, San Mateo 94401 Off market since Oct 2026 $325,000 · 2 bd · 2 ba · 1,125 sqft