870 Union St
San Francisco, CA 94133
2 bd 3 ba 1,525 sqft Lot 3,315 sqft condos
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 |
|---|---|---|---|---|
| 2023 | $791,568 | $867,850 | $1,659,418 | $20,308 |
| 2022 | $587,224 | $850,834 | $1,438,058 | $17,697 |
| 2021 | $556,102 | $834,152 | $1,390,254 | $17,153 |
| 2020 | $550,400 | $825,600 | $1,376,000 | $17,231 |
| 2019 | $213,164 | $452,790 | $665,954 | $8,579 |
| 2018 | $208,986 | $443,912 | $652,898 | $8,291 |
| 2017 | $204,889 | $435,208 | $640,097 | $7,895 |
Property facts
Year built
—
Property type
condos
Stories
2
Beds
2
Baths
3
Living area
1,525 sqft
Lot size
3,315 sqft
ZIP code
94133
City
San Francisco
Street
Union St
Coordinates
37.80008, -122.41364
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 870 Union St last sell?
No public-record sale is on file for 870 Union St.
What is the current tax assessment for 870 Union St?
The most recent total assessment for 870 Union St (year 2023) is $1,659,418 with $20,308 in property tax.
When was 870 Union St built?
The year built for 870 Union St is not in our records.
How does 870 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 870 Union St?
870 Union St is a 2 bed, 3 bath, 1,525 sqft, 3,315 sqft lot condos.
Is 870 Union St a flip candidate?
No — 870 Union St does not appear in our flips dataset.
Is 870 Union St a tax-appeal candidate?
No — 870 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