23 S Idaho San Mateo, CA ^$ 1,900,000

23 S Idaho

^$ 1,900,000

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Recently Listed

23 S Idaho

San Mateo, CA, 94401

^$ 1,900,000

Bedrooms9 Baths9.2 Sq 6,017

Monthly Estimate*

^$ 11,997

Listed by Elmwood Capital

23 S Idaho, San Mateo, CA 94401 - Image 1

23 S Idaho, San Mateo, CA 94401 - Image 2

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23 S Idaho, San Mateo, CA 94401 - Image 4

23 S Idaho, San Mateo, CA 94401 - Image 5

23 S Idaho, San Mateo, CA 94401 - Image 6

23 S Idaho, San Mateo, CA 94401 - Image 7

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23 S Idaho, San Mateo, CA 94401 - Image 9

23 S Idaho, San Mateo, CA 94401 - Image 10

23 S Idaho, San Mateo, CA 94401 - Image 11

23 S Idaho, San Mateo, CA 94401 - Image 12

Single Family Home for sale in San Mateo, CA

for $1,900,000 with 9 bedrooms and 9 full baths, 2 half baths. This 6,017 square foot home was built in 1940 on a lot size of 0.1797.

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.

Single Family Active

Price

^$ 1,900,000

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 0

Style

Lot Size

0.1797

Year Built

1940

Town/City

San Mateo

County/Region

San Mateo

MLS | Web ID

ML82055666

Days on Market

Features

General

Living Area 6017

Sewer Public Sewer

Utilities Other

Roof Other

Zoning RM0003

Garage Spaces 3

Year Built 1940

County San Mateo

New Construction false

Property Type Residential

HOA false

Attached Garage true

Garage Y/N true

Full Baths 9

Special Listing Conditions Standard

Status Active

Directions Cross Street: Cypress

City San Mateo

High School District Other

MLS Area 699 - Not Defined

Lot Size Units Square Feet

Lot Size Square Feet 7828

Property Attached Y/N false

Standard Status Active

Year Built Source Other

Interior

Air Conditioning Y/N true

Heating Y/N true

Fireplace Y/N false

Half Baths 2

Total Bedrooms 9

Total Baths 11

Exterior

Lot Features Level

Water Source Public

Total Parking 3

Lot Size Area 7828

Lot Size Acres 0.1797

Lot Size Source Assessor

* Excluded Features

List By

Elmwood Capital

Broker

kevin@elmwoodcapital.com

Affordability Calculator

$11,997

Per Month

Monthly Principal & Interest: $11,997
Monthly Property Taxes: --
Monthly Home Insurance: --

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Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

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Nearby

Trends
Schools

Single family listings in San Mateo, CA

Average List Price ^$2,501,325

Percent of Sale Price 32%

About San Mateo, CA

105,907 Population

14% Since 2002

^$102,688 Median Income

41.09 Median Age

27% Households with Children

View more area information

Trends Information provided by ATTOM Data Solutions.

4827338 Elementary School

4827337 Middle School

Unknown High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
7/28/2026	$1,900,000		Listed Price

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23 S Idaho, San Mateo, CA, 94401 is a Single Family Home for sale at $1,900,000 with 6,017 sqft and a lot size of 0.1797. 23 S Idaho has 9 bedrooms, 9.2 baths, and was built in 1940. The property's zip code is 94401 which is in San Mateo, CA

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Listing data provided courtesy of the Internet Data Exchange Program of the California Regional Multiple Listing Service, Inc..

Based on information from California Regional Multiple Listing Service, Inc. as of 7/28/2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.

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23 S Idaho

Single Family Home for sale in San Mateo, CA

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