418-20 Union St
San Francisco, CA 94133
5 bd — ba 3,559 sqft Built 1906 Lot 2,156 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 | $1,038,960 | $1,203,006 | $2,241,966 | $27,886 |
| 2024 | $1,038,960 | $1,203,006 | $2,241,966 | $27,072 |
| 2023 | $998,618 | $1,156,294 | $2,154,912 | $26,539 |
| 2022 | $979,038 | $1,133,622 | $2,112,660 | $26,002 |
| 2021 | $959,842 | $1,111,396 | $2,071,238 | $25,551 |
| 2020 | $950,000 | $1,100,000 | $2,050,000 | $26,579 |
| 2019 | $800,000 | $1,200,000 | $2,000,000 | $25,510 |
| 2018 | $702,270 | $1,638,630 | $2,340,900 | $28,402 |
| 2017 | $688,500 | $1,606,500 | $2,295,000 | $27,775 |
| 2016 | $675,000 | $1,575,000 | $2,250,000 | $27,348 |
| 2015 | $384,074 | $896,174 | $1,280,248 | $15,940 |
| 2014 | $376,551 | $878,620 | $1,255,171 | $15,529 |
| 2013 | $374,850 | $874,650 | $1,249,500 | $15,606 |
| 2012 | $457,115 | $489,612 | $946,727 | $11,745 |
| 2010 | $448,156 | $480,014 | $928,170 | $11,390 |
| 2009 | $444,815 | $476,432 | $921,247 | $11,368 |
| 2008 | $437,133 | $468,204 | $905,337 | $10,985 |
| 2007 | $428,566 | $459,029 | $887,595 | $10,360 |
Property facts
Year built
1906
Property type
multi_family
Stories
—
Beds
5
Baths
—
Living area
3,559 sqft
Lot size
2,156 sqft
ZIP code
94133
City
San Francisco
Street
Union St
Coordinates
37.80095, -122.40647
Comparable properties nearby
Frequently asked questions
When did 418-20 Union St last sell?
No public-record sale is on file for 418-20 Union St.
What is the current tax assessment for 418-20 Union St?
The most recent total assessment for 418-20 Union St (year 2025) is $2,241,966 with $27,886 in property tax.
When was 418-20 Union St built?
418-20 Union St was built in 1906.
How does 418-20 Union St compare to others on Union St?
We track 8 other properties on Union St. Browse the list under "Other properties on Union St" to compare beds, baths, and sale history.
What are the property facts for 418-20 Union St?
418-20 Union St is a 5 bed, — bath, 3,559 sqft, 2,156 sqft lot multi_family.
Is 418-20 Union St a flip candidate?
No — 418-20 Union St does not appear in our flips dataset.
Is 418-20 Union St a tax-appeal candidate?
No — 418-20 Union St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+13.6%
Implied 1-yr
+54.4%
2026 Q2
$4.71M
2026 Q3
$5.05M
ZIP 94133 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union St