678 21st Ave
San Francisco, CA 94121
4 bd 4 ba 2,852 sqft Built 1921 Lot 3,049 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 | $886,834 | $2,069,286 | $2,956,120 | $35,686 |
| 2024 | $886,834 | $2,069,286 | $2,956,120 | $34,657 |
| 2023 | $852,399 | $1,988,934 | $2,841,333 | $34,145 |
| 2022 | $835,686 | $1,949,936 | $2,785,622 | $33,513 |
| 2021 | $819,300 | $1,911,702 | $2,731,002 | $32,924 |
| 2020 | $810,900 | $1,892,100 | $2,703,000 | $33,050 |
| 2019 | $795,000 | $1,855,000 | $2,650,000 | $31,927 |
| 2018 | $408,000 | $938,000 | $1,346,000 | $16,352 |
| 2017 | $36,801 | $39,189 | $75,990 | $1,200 |
| 2016 | $36,080 | $38,421 | $74,501 | $1,148 |
| 2015 | $35,539 | $37,844 | $73,383 | $864 |
| 2014 | $34,843 | $37,103 | $71,946 | $841 |
| 2013 | $34,686 | $36,936 | $71,622 | $846 |
| 2012 | $34,006 | $36,212 | $70,218 | $739 |
| 2010 | $33,340 | $35,502 | $68,842 | $713 |
| 2009 | $33,091 | $35,237 | $68,328 | $712 |
| 2008 | $32,520 | $34,629 | $67,149 | $699 |
| 2007 | $31,883 | $33,950 | $65,833 | $671 |
Property facts
Year built
1921
Property type
single_family
Stories
—
Beds
4
Baths
4
Living area
2,852 sqft
Lot size
3,049 sqft
ZIP code
94121
City
San Francisco
Street
21st Ave
Coordinates
37.77504, -122.47974
Comparable properties nearby
Frequently asked questions
When did 678 21st Ave last sell?
No public-record sale is on file for 678 21st Ave.
What is the current tax assessment for 678 21st Ave?
The most recent total assessment for 678 21st Ave (year 2025) is $2,956,120 with $35,686 in property tax.
When was 678 21st Ave built?
678 21st Ave was built in 1921.
How does 678 21st Ave compare to others on 21st Ave?
We track 8 other properties on 21st Ave. Browse the list under "Other properties on 21st Ave" to compare beds, baths, and sale history.
What are the property facts for 678 21st Ave?
678 21st Ave is a 4 bed, 4 bath, 2,852 sqft, 3,049 sqft lot single_family.
Is 678 21st Ave a flip candidate?
No — 678 21st Ave does not appear in our flips dataset.
Is 678 21st Ave a tax-appeal candidate?
No — 678 21st 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
-0.8%
Implied 1-yr
-3.2%
2026 Q3
$2.17M
2026 Q4
$2.15M
ZIP 94121 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 21st Ave