For Sale
Single family home for sale at 23 S Idaho, San Mateo, CA 94401 | MLS# ML82055666 | Listing updated on 2026-08-01
Photo 1 of Single family home for sale at 23 S Idaho, San Mateo, CA 94401 | MLS# ML82055666 | Listing updated on 2026-08-01
Photo 2 of Single family home for sale at 23 S Idaho, San Mateo, CA 94401 | MLS# ML82055666 | Listing updated on 2026-08-01
Photo 3 of Single family home for sale at 23 S Idaho, San Mateo, CA 94401 | MLS# ML82055666 | Listing updated on 2026-08-01
Photo 4 of Single family home for sale at 23 S Idaho, San Mateo, CA 94401 | MLS# ML82055666 | Listing updated on 2026-08-01
13+
Beds Icon

Street View

Listed by: Kevin Chen (415) 997-3338 DRE #02407503 | Elmwood Capital (415) 997-3338

$1,900,000

Monthly Est:$9,457

  • Beds Icon9 Beds
  • Beds Icon
    11 Baths
  • Beds Icon6,017sqft

23 S Idaho, San Mateo, CA 94401

$9,457/moEst:

Get Pre-Approved

  • Single Family Residence

  • Built in 1940

  • $-- HOA

  • 7,828 sqft lot

  • $316/sq.ft

Description

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 devel...

Continue Reading
  • Houzeo last checked: 5 hours ago
  • Listing updated: August 1, 2026 at 12:50 am
  • Source: California Regional MLS-CA | MLS#: ML82055666 California Regional MLS-CA

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    -

  • County

    San Mateo County

  • City

    San Mateo

  • Neighborhood

    --

  • Year Built

    1940

  • HOA Fees

    -

  • Finished Area

    6,017 sqft

  • Lot Size

    7,828 sqft lot

  • Basement Area

    - sqft

  • MLS Name

    California Regional MLS

  • MLS Number

    ML82055666

  • MLS Status

    Active

  • Days on Market

    56

Continue Your Journey in App

Find your dream home, receive real-time updates, and many more!

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 9

    Bathrooms: 11

Interior

  • Sewer

    Public Sewer

Construction

  • Year Built

    Year Built: 1940

  • Home type

    Single Family Residence

  • Roof

    Other

Utilities & Energy

  • Water Source

    Public

  • Utilities

    Other

Other Features

  • Lot Features

    Level

Price History

DateEventPrice

07/27/2026

Source: mls_logoCalifornia Regional MLS-CA #ML82055665

Listed for Sale

$1,900,000

$316/sqft

Based on information from California Regional Multiple Listing Service, Inc. as of Sep 22, 2026, 05:00PM and /or other sources. 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. Properties may or may not be listed by the office/agent presenting the information. Information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.

Advertising Broker: William Johnson DRE #01463271 | William Johnson Brokerage

Click to see all homes
static map image
Satellite
Close IconHouzeo

Do Real Estate on the Go!

For Sale
Price
Beds & Baths
Home Type
Filters
Save Search Share