---
listing_id: ML82056708
status: Closed
price: 1780000
beds: 0
baths_full: 0
baths_half: 0
sqft_living: 4008
sqft_lot: 7602
lot_acres: 
year_built: 1986
property_type: Residential Income
property_subtype: Duplex
address: "143-145 N Humboldt St"
city: San Mateo
state: CA
zip: 94401
county: "San Mateo County"
lat: 37.574359
lng: -122.321982
days_on_market: 71
hoa_fee: 
hoa_frequency: 
garage_spaces: 2
list_agent: "Wendy L. Ng"
list_office: "WEM Pacific Investment Inc."
list_agent_phone: "(650) 888-8672"
list_agent_license: 01521487
mls_source: MLSL
modified: 2026-10-12
transaction_type: recentlySold
---

Home | San Mateo County | San Mateo | 94401 | 143-145 N Humboldt St

143-145 N Humboldt St, San Mateo, CA 94401

MLS: ML82056708 | Status: Sold | Price: $1,780,000
Beds/Baths: – / –
Property Type: Residential Income

Quick Facts

Beds Baths Sq Ft Sq Ft Lot Yr Built
– – 4,008 7,602 1986

Remarks

Exceptional duplex investment opportunity in a desirable San Mateo location! Build in 1986, this well-maintained property features two spacious 3 bedroom, 2.5-baths units, each with an attached one-car garage, private driveway parking, and generous living space. Large rear yard offers excellent potential to add an ADU or explore future expansion possibilities(Buyer to verify with the City of San Mateo). Ideally located just minutes from vibrant Downtown San Mateo, Caltrain, shopping, dining, parks, and major commute routes including Highways 101 and 92. An outstanding opportunity for investors or owner-occupants seeking strong rental income and long-term upside.

MLS Listing Information

Field Value
MLS # ML82056708
MLS Source MLSListings, Inc.

Features

Interior Features

Feature Details
Cooling None
Heating Gas

Exterior Features

Feature Details
Roof Other
Foundation None

Parking, School, and Other Information

Feature Details
Garage/Parking Attached Garage, Garage: 2 Car(s)
Elementary District San Mateo-Foster City Elementary
High School District San Mateo Union High
Sewer Public Sewer
Water Public
Zoning R20000

Contact Information

Wendy L. Ng
WEM Pacific Investment Inc.
License #: 01521487
Phone: (650) 888-8672

Property Units

# Buildings # Leased Units # Total Units
2 2 2

Unit Details

Unit # Sq Ft Beds Baths Rent
1 2,000 3 2/1 $3,690
2 2,000 3 2/1 $3,639

Disclosures

©2026 MLSListings Inc. All rights reserved. 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 provided is for personal, non-commercial use by the viewer and may not be redistributed without explicit authorization from MLSListings Inc.

Presently MLSListings.com displays Active, Contingent, Pending, and Recently Sold listings. Recently Sold listings are properties which were sold within the last three years. After that period listings are no longer displayed in MLSListings.com. Pending listings are properties under contract and no longer available for sale. Contingent listings are properties where there is an accepted offer, and seller may be seeking back-up offers. Active listings are available for sale.

This listing information is up-to-date as of October 12, 2026. For the most current information, please contact Wendy L. Ng, (650) 888-8672.