391 El Portal Ave
San Mateo, CA 94402
5 bd 4 ba 3,040 sqft Built 1925 Lot 9,805 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,336,946 | $1,820,524 | $3,157,470 | $37,952 |
| 2024 | $1,336,946 | $1,820,524 | $3,157,470 | $37,001 |
| 2023 | $1,285,032 | $1,749,832 | $3,034,864 | $36,323 |
| 2022 | $1,259,836 | $1,715,522 | $2,975,358 | $36,131 |
| 2021 | $1,235,134 | $1,681,885 | $2,917,019 | $35,936 |
| 2020 | $1,222,470 | $1,664,640 | $2,887,110 | $34,956 |
| 2019 | $1,198,500 | $1,632,000 | $2,830,500 | $33,404 |
| 2018 | $1,175,000 | $1,600,000 | $2,775,000 | $32,776 |
| 2017 | $707,683 | $1,172,430 | $1,880,113 | $22,065 |
| 2016 | $693,807 | $1,149,442 | $1,843,249 | $21,697 |
| 2015 | $683,386 | $1,132,177 | $1,815,563 | $21,621 |
| 2014 | $900,000 | $900,000 | $1,800,000 | $21,333 |
| 2013 | $125,618 | $45,759 | $171,377 | $2,804 |
| 2012 | $123,155 | $44,862 | $168,017 | $2,783 |
| 2011 | $120,741 | $43,983 | $164,724 | $2,564 |
| 2010 | $119,839 | $43,655 | $163,494 | $2,494 |
| 2009 | $120,124 | $43,759 | $163,883 | $2,304 |
| 2008 | $117,769 | $42,901 | $160,670 | $2,295 |
| 2007 | $115,460 | $42,060 | $157,520 | $2,247 |
Property facts
Year built
1925
Property type
single_family
Stories
2
Beds
5
Baths
4
Living area
3,040 sqft
Lot size
9,805 sqft
ZIP code
94402
City
San Mateo
Street
El Portal Ave
Coordinates
37.56412, -122.34666
Comparable properties nearby
Frequently asked questions
When did 391 El Portal Ave last sell?
No public-record sale is on file for 391 El Portal Ave.
What is the current tax assessment for 391 El Portal Ave?
The most recent total assessment for 391 El Portal Ave (year 2025) is $3,157,470 with $37,952 in property tax.
When was 391 El Portal Ave built?
391 El Portal Ave was built in 1925.
How does 391 El Portal Ave compare to others on El Portal Ave?
We do not currently track other properties on El Portal Ave.
What are the property facts for 391 El Portal Ave?
391 El Portal Ave is a 5 bed, 4 bath, 3,040 sqft, 9,805 sqft lot single_family.
Is 391 El Portal Ave a flip candidate?
No — 391 El Portal Ave does not appear in our flips dataset.
Is 391 El Portal Ave a tax-appeal candidate?
No — 391 El Portal Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+0.9%
Implied 1-yr
+3.7%
2026 Q3
$2.71M
2026 Q4
$2.74M
ZIP 94402 — Median Price History + Forecast
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Geography