421 Blackstone Dr
San Rafael, CA 94903
4 bd 3 ba 2,495 sqft Built 1969 Lot 10,454 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 | $744,558 | $874,904 | $1,619,462 | $22,622 |
| 2024 | $744,558 | $874,904 | $1,619,462 | $22,003 |
| 2023 | $715,651 | $840,936 | $1,556,587 | $21,974 |
| 2022 | $701,619 | $824,448 | $1,526,067 | $21,105 |
| 2021 | $648,651 | $808,288 | $1,456,939 | $19,717 |
| 2020 | $642,000 | $800,000 | $1,442,000 | $19,730 |
| 2019 | $498,333 | $644,902 | $1,143,235 | $15,994 |
| 2018 | $488,562 | $632,257 | $1,120,819 | $15,772 |
| 2017 | $478,982 | $619,860 | $1,098,842 | $14,916 |
| 2016 | $469,591 | $607,706 | $1,077,297 | $14,597 |
| 2015 | $476,820 | $447,018 | $923,838 | $12,723 |
| 2014 | $425,733 | $399,124 | $824,857 | $11,079 |
| 2013 | $387,030 | $362,840 | $749,870 | $10,290 |
| 2012 | $368,600 | $345,562 | $714,162 | $9,851 |
| 2010 | $380,000 | $356,250 | $736,250 | $9,623 |
| 2009 | $380,000 | $356,250 | $736,250 | $9,897 |
| 2008 | $423,226 | $547,704 | $970,930 | $11,632 |
| 2006 | $414,929 | $536,967 | $951,896 | $11,290 |
Property facts
Year built
1969
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
2,495 sqft
Lot size
10,454 sqft
ZIP code
94903
City
San Rafael
Street
Blackstone Dr
Coordinates
38.03823, -122.54641
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 421 Blackstone Dr last sell?
No public-record sale is on file for 421 Blackstone Dr.
What is the current tax assessment for 421 Blackstone Dr?
The most recent total assessment for 421 Blackstone Dr (year 2025) is $1,619,462 with $22,622 in property tax.
When was 421 Blackstone Dr built?
421 Blackstone Dr was built in 1969.
How does 421 Blackstone Dr compare to others on Blackstone Dr?
We track 8 other properties on Blackstone Dr. Browse the list under "Other properties on Blackstone Dr" to compare beds, baths, and sale history.
What are the property facts for 421 Blackstone Dr?
421 Blackstone Dr is a 4 bed, 3 bath, 2,495 sqft, 10,454 sqft lot single_family.
Is 421 Blackstone Dr a flip candidate?
No — 421 Blackstone Dr does not appear in our flips dataset.
Is 421 Blackstone Dr a tax-appeal candidate?
No — 421 Blackstone Dr is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-2.9%
Implied 1-yr
-11.4%
2026 Q3
$861.3K
2026 Q4
$861.3K
ZIP 94903 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Blackstone Dr