521 Diamond Ave
South San Francisco, CA 94080
3 bd 2 ba 1,140 sqft Built 1957 Lot 5,000 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 | $491,005 | $768,831 | $1,259,836 | $14,396 |
| 2024 | $491,005 | $768,831 | $1,259,836 | $14,298 |
| 2023 | $471,940 | $738,977 | $1,210,917 | $14,095 |
| 2022 | $334,938 | $724,488 | $1,059,426 | $11,939 |
| 2021 | $191,773 | $710,283 | $902,056 | $10,342 |
| 2020 | $297,000 | $703,000 | $1,000,000 | $11,348 |
| 2019 | $68,329 | $19,763 | $88,092 | $1,649 |
| 2018 | $66,990 | $19,376 | $86,366 | $1,611 |
| 2017 | $65,677 | $18,997 | $84,674 | $1,533 |
| 2016 | $64,390 | $18,625 | $83,015 | $1,435 |
| 2015 | $63,423 | $18,346 | $81,769 | $1,408 |
| 2014 | $62,181 | $17,987 | $80,168 | $1,368 |
| 2013 | $61,900 | $17,906 | $79,806 | $1,330 |
| 2012 | $60,687 | $17,555 | $78,242 | $1,314 |
| 2011 | $59,498 | $17,211 | $76,709 | $1,290 |
| 2010 | $59,054 | $17,083 | $76,137 | $1,257 |
| 2009 | $59,195 | $17,124 | $76,319 | $1,211 |
| 2008 | $58,035 | $16,789 | $74,824 | $1,115 |
| 2007 | $56,898 | $16,460 | $73,358 | $1,070 |
Property facts
Year built
1957
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
1,140 sqft
Lot size
5,000 sqft
ZIP code
94080
City
South San Francisco
Street
Diamond Ave
Coordinates
37.66118, -122.41360
Comparable properties nearby
Frequently asked questions
When did 521 Diamond Ave last sell?
No public-record sale is on file for 521 Diamond Ave.
What is the current tax assessment for 521 Diamond Ave?
The most recent total assessment for 521 Diamond Ave (year 2025) is $1,259,836 with $14,396 in property tax.
When was 521 Diamond Ave built?
521 Diamond Ave was built in 1957.
How does 521 Diamond Ave compare to others on Diamond Ave?
We track 5 other properties on Diamond Ave. Browse the list under "Other properties on Diamond Ave" to compare beds, baths, and sale history.
What are the property facts for 521 Diamond Ave?
521 Diamond Ave is a 3 bed, 2 bath, 1,140 sqft, 5,000 sqft lot single_family.
Is 521 Diamond Ave a flip candidate?
No — 521 Diamond Ave does not appear in our flips dataset.
Is 521 Diamond Ave a tax-appeal candidate?
No — 521 Diamond 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
-0.7%
Implied 1-yr
-2.8%
2026 Q3
$1.31M
2026 Q4
$1.3M
ZIP 94080 — Median Price History + Forecast
Explore nearby
Other properties on Diamond Ave