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$1,900,000

23 South Idaho, San Mateo, CA 94401

52% above the San Mateo median of $1.2M (80 active listings)

44% of San Mateo listings have cut their price · half have been listed 49+ days

9beds
10baths
6,017sqft
$316/sqft

About this home

Prime development opportunity to build THREE (3) 3-bedroom single family homes in the heart of San Mateo! City approved plans for the three (3) detached homes with attached garages totaling approximately 6,017 SF. The expansive R-3 zoned 7,828 SF lot offers several exceptional development strategies. Create a brand-new detached multi-generational living compound. Live in one home, sell the other two. Or build and sell all three homes. The proposed homes are approximately 2,086, 1,990, and 1,941 SF. Conveniently located near Downtown San Mateo, Caltrain, Central Park, shopping, dining, and 101. An existing single-family home occupies the parcel. A rare opportunity to develop three (3) new detached homes in a highly desired San Mateo location.

Property details

Property type
other residential
Year built
1940
Listed
3 days ago
MLS #
82055666
Listed by
Kevin Chen · Elmwood Capital

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Location

Approximate location based on the listing address.

Copyright 2026 MLSListings Inc. Based on information from MLSListings MLS as of 7/29/2026. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. MLS Listing #82055666. Listing courtesy of Elmwood Capital.