621 Blackstone Dr
San Rafael, CA 94903
5 bd 6 ba 6,111 sqft Built 1989 Lot 42,218 sqft single_family
Most recent sale
$2,775,000
Nov 10, 2021
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Nov 10, 2021 | Sold | $2,775,000 | MLS #321072781 |
| Sep 16, 2021 | Price changed | $2,950,000 | MLS #321072781 |
| Sep 1, 2021 | Price changed | $3,050,000 | MLS #321072781 |
| Jul 31, 2021 | Listed | $3,150,000 | MLS #321072781 |
| Oct 6, 2015 | Sold | $1,900,000 | MLS #21519447 |
| Aug 7, 2015 | Listed | $2,099,000 | MLS #21519447 |
| Jun 16, 2009 | Sold | $1,600,000 | Public Record |
| Jun 14, 2009 | Listing removed | $1,695,000 | Bareis |
| Apr 21, 2009 | Listed | $1,695,000 | MLS #20910873 |
| Jul 19, 2002 | Sold | $1,500,000 | Public Record |
| Jun 19, 2001 | Sold | $1,425,000 | Public Record |
| Jun 18, 1998 | Sold | $1,050,000 | Public Record |
| Mar 24, 1989 | Sold | $185,000 | Public Record |
| Jan 31, 1989 | Sold | $620,000 | Public Record |
| Jan 1, 1988 | Sold | $1,286,500 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,299,970 | $1,644,860 | $2,944,830 | $38,915 |
| 2024 | $1,299,970 | $1,644,860 | $2,944,830 | $37,923 |
| 2023 | $1,249,500 | $1,581,000 | $2,830,500 | $38,021 |
| 2022 | $1,225,000 | $1,550,000 | $2,775,000 | $36,554 |
| 2021 | $1,224,864 | $918,649 | $2,143,513 | $28,486 |
| 2020 | $1,212,310 | $909,232 | $2,121,542 | $28,551 |
| 2019 | $1,188,544 | $891,408 | $2,079,952 | $27,480 |
| 2018 | $1,165,248 | $873,936 | $2,039,184 | $27,123 |
| 2017 | $1,142,400 | $856,800 | $1,999,200 | $25,698 |
| 2016 | $1,060,000 | $840,000 | $1,900,000 | $24,495 |
| 2015 | $696,449 | $1,017,887 | $1,714,336 | $22,132 |
| 2014 | $682,812 | $997,956 | $1,680,768 | $20,785 |
| 2013 | $628,923 | $919,196 | $1,548,119 | $19,404 |
| 2012 | $598,975 | $875,425 | $1,474,400 | $18,517 |
| 2010 | $617,500 | $902,500 | $1,520,000 | $18,291 |
| 2009 | $920,794 | $843,510 | $1,764,304 | $20,763 |
| 2008 | $902,741 | $826,972 | $1,729,713 | $19,923 |
| 2006 | $885,041 | $810,757 | $1,695,798 | $19,382 |
Property facts
Year built
1989
Property type
single_family
Stories
3
Beds
5
Baths
6
Living area
6,111 sqft
Lot size
42,218 sqft
ZIP code
94903
City
San Rafael
Street
Blackstone Dr
Coordinates
38.04189, -122.55255
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsInvestment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$19,555
Gross rental yield
8.46%
Implied cap rate
5.50%
Trend-extrapolated value
—
Frequently asked questions
When did 621 Blackstone Dr last sell?
621 Blackstone Dr most recently sold on Nov 10, 2021 for $2,775,000.
What is the current tax assessment for 621 Blackstone Dr?
The most recent total assessment for 621 Blackstone Dr (year 2025) is $2,944,830 with $38,915 in property tax.
How does 621 Blackstone Dr's assessment compare to its last sale price?
The current assessment is 6.1% above the last sale price of $2,775,000.
When was 621 Blackstone Dr built?
621 Blackstone Dr was built in 1989.
How does 621 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 621 Blackstone Dr?
621 Blackstone Dr is a 5 bed, 6 bath, 6,111 sqft, 42,218 sqft lot single_family.
Is 621 Blackstone Dr a flip candidate?
No — 621 Blackstone Dr does not appear in our flips dataset.
Is 621 Blackstone Dr a tax-appeal candidate?
No — 621 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