321 Monte Diablo Ave
San Mateo, CA 94401
— ba 4,704 sqft Built 1927 Lot 5,981 sqft multi_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 | $1,196,460 | $1,872,720 | $3,069,180 | $43,601 |
| 2024 | $1,196,460 | $1,872,720 | $3,069,180 | $43,239 |
| 2023 | $1,150,000 | $1,800,000 | $2,950,000 | $41,221 |
| 2022 | $2,206,591 | $707,652 | $2,914,243 | $40,709 |
| 2021 | $2,163,325 | $693,777 | $2,857,102 | $39,857 |
| 2020 | $2,141,143 | $686,664 | $2,827,807 | $37,724 |
| 2019 | $2,099,160 | $673,200 | $2,772,360 | $36,560 |
| 2018 | $2,058,000 | $660,000 | $2,718,000 | $34,034 |
| 2017 | $100,308 | $31,433 | $131,741 | $2,826 |
| 2016 | $98,342 | $30,817 | $129,159 | $2,388 |
| 2015 | $96,865 | $30,355 | $127,220 | $2,514 |
| 2014 | $94,968 | $29,761 | $124,729 | $2,577 |
| 2013 | $94,539 | $29,627 | $124,166 | $2,375 |
| 2012 | $92,686 | $29,047 | $121,733 | $2,410 |
| 2011 | $90,869 | $28,478 | $119,347 | $2,322 |
| 2010 | $90,190 | $28,266 | $118,456 | $2,037 |
| 2009 | $90,405 | $28,334 | $118,739 | $2,003 |
| 2008 | $88,633 | $27,779 | $116,412 | $2,028 |
| 2007 | $86,896 | $27,235 | $114,131 | $1,862 |
Property facts
Year built
1927
Property type
multi_family
Stories
—
Beds
—
Baths
—
Living area
4,704 sqft
Lot size
5,981 sqft
ZIP code
94401
City
San Mateo
Street
Monte Diablo Ave
Coordinates
37.57087, -122.32809
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 321 Monte Diablo Ave last sell?
No public-record sale is on file for 321 Monte Diablo Ave.
What is the current tax assessment for 321 Monte Diablo Ave?
The most recent total assessment for 321 Monte Diablo Ave (year 2025) is $3,069,180 with $43,601 in property tax.
When was 321 Monte Diablo Ave built?
321 Monte Diablo Ave was built in 1927.
How does 321 Monte Diablo Ave compare to others on Monte Diablo Ave?
We track 8 other properties on Monte Diablo Ave. Browse the list under "Other properties on Monte Diablo Ave" to compare beds, baths, and sale history.
What are the property facts for 321 Monte Diablo Ave?
321 Monte Diablo Ave is a — bath, 4,704 sqft, 5,981 sqft lot multi_family.
Is 321 Monte Diablo Ave a flip candidate?
No — 321 Monte Diablo Ave does not appear in our flips dataset.
Is 321 Monte Diablo Ave a tax-appeal candidate?
No — 321 Monte Diablo 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
+3.2%
Implied 1-yr
+12.7%
2026 Q3
$1.39M
2026 Q4
$1.39M
ZIP 94401 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Monte Diablo Ave