201 S Idaho ST San Mateo CA 94401 | MLS #ML82056461
Mid-century legal duplex in Central San Mateo, built in 1950 and held by the same family ever since more than 75 years now delivered with both units vacant. Nearly 3,400 square feet of total living space across two units on a 7,630-square-foot lot: a 4-bedroom, 2-bathroom unit and a 3-bedroom, 1-bathroom unit, plus an attached 2-car garage. Because both units are vacant at close, a buyer can move into one and set their own terms on the other a layout that works for multigenerational households, extended family, adult children, or offsetting a Peninsula mortgage with rental income. Both units are original and well cared for, with mid-century proportions and detail intact and clear upside for a buyer who wants to update over time. Walking distance to downtown San Mateo B Street restaurants, shops, Central Park, and the San Mateo Caltrain station, with service north to San Francisco and south to San Jose. Legal duplexes on lots this size rarely trade in Central San Mateo, and vacant ones almost never do. Easy access to Highway 101 puts both the San Francisco and Silicon Valley job corridors within reach. Available for the first time in over 75 years in San Mateo
Property Details
Price:
$1,699,000
MLS #:
ML82056461
Status:
Active
Beds:
0
Baths:
0
Type:
Single Family
Subtype:
Duplex
Neighborhood:
699notdefined
Listed Date:
Aug 21, 2026
Finished Sq Ft:
3,385
Total Sq Ft:
3,385
Lot Size:
7,630 sqft / 0.18 acres (approx)
Year Built:
1950
See this Listing
Schools
School District:
Other
Interior
Cooling
NO
Heating
CF
Exterior
Accessibility Features
NO
Garage Spaces
2
Roof
OTH
Financial
Map
Community
- Address201 S Idaho ST San Mateo CA
- CitySan Mateo
- CountySan Mateo
- Zip Code94401
Market Summary
Current real estate data for Single Family in San Mateo as of Aug 28, 2026
73
Single Family Listed
78
Avg DOM
964
Avg $ / SqFt
$1,966,946
Avg List Price
Property Summary
- 201 S Idaho ST San Mateo CA is a Single Family for sale in San Mateo, CA, 94401. It is listed for $1,699,000 and features 0 beds, 0 baths, and has approximately 3,385 square feet of living space, and was originally constructed in 1950. The current price per square foot is $502. The average price per square foot for Single Family listings in San Mateo is $964. The average listing price for Single Family in San Mateo is $1,966,946. To schedule a showing of MLS#ml82056461 at 201 S Idaho ST in San Mateo, CA, contact your The Knight Group LA agent at 310.409.7242.
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Courtesy of KW Advisors. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the California Regional Multiple Listing Service. Detailed information about real estate listings held by brokerage firms other than The Knight Group LA include the name of the listing broker. Neither the listing company nor The Knight Group LA shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. California Regional Multiple Listing Service. All rights reserved.201 S Idaho ST
San Mateo, CA
