Looking for the best duplex investment in San Mateo right now? This might be it. Welcome to 1026/1028 S Idaho Street in Sunnybrae, one of San Mateo’s most centrally located and up-and-coming neighborhoods. This updated duplex offers approximately 2,097 sqft of living space on a 5,400 sqft lot, featuring two spacious 1 bedroom, 1 bathroom units, each with its own private yard, garage, and versatile loft space perfect for a home office, guest area, or added rental value. Recent upgrades include a newer roof, updated electrical and plumbing, and refreshed kitchens with modern finishes, making this a turnkey opportunity with long-term upside. One unit is vacant and the other will be delivered vacant June 1, offering immediate flexibility for investors or owner-occupants. Ideal for house hackers looking to offset their mortgage or investors seeking strong rental demand in a prime Peninsula location. Just minutes to Downtown San Mateo, Trader Joes, Central Park, Caltrain, and major commute routes including Hwy 101 and 92. Only 12 minutes to SFO. Opportunities like this in Sunnybrae are rare. Act quickly.
Property Details
Price:
$1,599,000
MLS #:
ML82040431
Status:
Active
Beds:
0
Baths:
0
Type:
Single Family
Subtype:
Duplex
Neighborhood:
699notdefined
Listed Date:
Mar 26, 2026
Finished Sq Ft:
2,097
Total Sq Ft:
2,097
Lot Size:
5,400 sqft / 0.12 acres (approx)
Year Built:
1947
See this Listing
Schools
School District:
Other
Interior
Appliances
DW, GD, MW, RF
Flooring
TILE, LAM, WOOD
Heating
WL
Exterior
Accessibility Features
NO
Garage Spaces
2
Parking Spots
2
Parking Total
2
Roof
CMP
Financial
Maintenance Fee
$1
Taxes
$1
Map
Community
- Address1028 S Idaho ST San Mateo CA
- CitySan Mateo
- CountySan Mateo
- Zip Code94402
Market Summary
Current real estate data for Single Family in San Mateo as of Apr 21, 2026
133
Single Family Listed
59
Avg DOM
997
Avg $ / SqFt
$1,890,136
Avg List Price
Property Summary
- 1028 S Idaho ST San Mateo CA is a Single Family for sale in San Mateo, CA, 94402. It is listed for $1,599,000 and features 0 beds, 0 baths, and has approximately 2,097 square feet of living space, and was originally constructed in 1947. The current price per square foot is $763. The average price per square foot for Single Family listings in San Mateo is $997. The average listing price for Single Family in San Mateo is $1,890,136.
Similar Listings Nearby
Courtesy of eXp Realty of California Inc. 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 include the name of the listing broker. Neither the listing company nor 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.1028 S Idaho ST
San Mateo, CA