Mid-century legal duplex in Central San Mateo, built in 1950 and held by the same family ever since more than 75 years now delivered with both units vacant. Nearly 3,400 square feet of total living space across two units on a 7,630-square-foot lot: a 4-bedroom, 2-bathroom unit and a 3-bedroom, 1-bathroom unit, plus an attached 2-car garage. Because both units are vacant at close, a buyer can move into one and set their own terms on the other a layout that works for multigenerational households, extended family, adult children, or offsetting a Peninsula mortgage with rental income. Both units are original and well cared for, with mid-century proportions and detail intact and clear upside for a buyer who wants to update over time. Walking distance to downtown San Mateo B Street restaurants, shops, Central Park, and the San Mateo Caltrain station, with service north to San Francisco and south to San Jose. Legal duplexes on lots this size rarely trade in Central San Mateo, and vacant ones almost never do. Easy access to Highway 101 puts both the San Francisco and Silicon Valley job corridors within reach. Available for the first time in over 75 years in San Mateo
Pending
$1,699,000
201 S Idaho St, San Mateo, CA 94401
7beds
3baths
3,385sqft
Duplex, Residential Income
Built in 1950
-- sqft lot
$-- Zestimate®
$502/sqft
$-- HOA
What's special
- 19 days
- 1,755
- 104
Zillow last checked:
Listing updated:
Listed by:
Burt Tsuei 01399365 650-274-3598,
KW Advisors 650-627-3700
Source: MLSListings Inc,MLS#: ML82056461
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 7
- Bathrooms: 3
Heating
- Central Forced Air
Cooling
- None
Features
- Doors: None
Interior area
- Total structure area: 3,385
- Total interior livable area: 3,385 sqft
Property
Parking
- Total spaces: 2
- Parking features: Attached
- Garage spaces: 2
- Has carport: Yes
Accessibility
- Accessibility features: None
Features
- Stories: 2
Lot
- Size: 7,630 Square Feet
Details
- Parcel number: 033133060
- Zoning: E1000R
- Special conditions: Standard
Construction
Type & style
- Home type: MultiFamily
- Property subtype: Duplex, Residential Income
Materials
- Foundation: Other
- Roof: Other
Condition
- Year built: 1950
Utilities & green energy
- Gas: PublicUtilities
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Public Utilities, Water Public
Community & HOA
Location
- Region: San Mateo
Financial & listing details
- Price per square foot: $502/sqft
- Tax assessed value: $1,810,296
- Annual tax amount: $23,188
- Date on market: 8/21/2026
- Listing agreement: ExclusiveAgency
- Inclusions: None
Estimated market value
Not available
Estimated sales range
Not available
$4,041/mo
Price history
| Date | Event | Price |
|---|---|---|
| 9/4/2026 | Pending sale | $1,699,000$502/sqft |
Source: | ||
| 8/21/2026 | Listed for sale | $1,699,000$502/sqft |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $23,188 +1.7% | $1,810,296 +2% |
| 2024 | $22,805 +331.1% | $1,774,800 +634.2% |
| 2023 | $5,290 +13.9% | $241,733 +2% |
| 2022 | $4,644 +10.6% | $236,994 +2% |
| 2021 | $4,200 +0.6% | $232,348 +1% |
| 2020 | $4,173 +3.6% | $229,967 +2% |
| 2019 | $4,029 +1.5% | $225,458 +2% |
| 2018 | $3,970 -3.5% | $221,039 +2% |
| 2017 | $4,116 +24.5% | $216,706 +2% |
| 2016 | $3,306 -19.1% | $212,458 +1.5% |
| 2015 | $4,088 | $209,268 +2% |
| 2014 | $4,088 | $205,170 +0.5% |
| 2013 | -- | $204,244 +2% |
| 2012 | -- | $200,241 |
| 2011 | -- | $200,241 +2.8% |
| 2010 | -- | $194,849 -0.2% |
| 2009 | -- | $195,313 +2% |
| 2008 | -- | $191,484 +2% |
| 2007 | -- | $187,730 +2% |
| 2006 | -- | $184,050 |
| 2005 | -- | $184,050 +4% |
| 2004 | -- | $176,904 +1.9% |
| 2003 | -- | $173,663 +2% |
| 2002 | -- | $170,258 +2% |
| 2001 | -- | $166,921 +2% |
| 2000 | -- | $163,649 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: Central
Nearby schools
Schools provided by the listing agent
- District: SanMateoFosterCityElementary
Source: MLSListings Inc. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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