21852 Ada St
Castro Valley, CA 94546
2 bd 1 ba 905 sqft Built 1948 Lot 5,040 sqft single_family
Most recent sale
$845,000
Feb 4, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Feb 4, 2022 | Sold | $845,000 | MLS #40980136 |
| Aug 21, 2007 | Sold | $478,833 | MLS #40259752 |
| Apr 18, 2007 | Listed | $469,900 | MLS #40259752 |
| Apr 18, 2007 | Listing removed | $549,000 | ContraCosta |
| Mar 27, 2007 | Listed | $549,000 | MLS #40253397 |
| Jun 13, 2002 | Sold | $350,000 | Public Record |
| Aug 12, 1998 | Sold | $185,000 | Public Record |
| Aug 10, 1998 | Sold | $184,000 | ContraCosta |
| Nov 15, 1991 | Sold | $174,000 | Public Record |
| Jul 27, 1988 | Sold | $137,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $627,699 | $269,014 | $896,713 | $11,558 |
| 2024 | $627,699 | $269,014 | $896,713 | $11,278 |
| 2023 | $603,330 | $258,570 | $861,900 | $11,079 |
| 2022 | $414,824 | $177,781 | $592,605 | $7,836 |
| 2021 | $406,693 | $174,297 | $580,990 | $7,752 |
| 2020 | $402,523 | $172,510 | $575,033 | $7,651 |
| 2019 | $394,634 | $169,128 | $563,762 | $7,708 |
| 2018 | $386,898 | $165,813 | $552,711 | $7,237 |
| 2017 | $366,100 | $156,900 | $523,000 | $6,836 |
| 2016 | $301,000 | $129,000 | $430,000 | $5,515 |
| 2015 | $266,700 | $114,300 | $381,000 | $4,892 |
| 2014 | $259,000 | $111,000 | $370,000 | $4,590 |
| 2013 | $213,500 | $91,500 | $305,000 | $3,844 |
| 2012 | $196,000 | $84,000 | $280,000 | $3,554 |
| 2010 | $182,000 | $78,000 | $260,000 | $3,269 |
| 2009 | $182,000 | $78,000 | $260,000 | $4,253 |
| 2008 | $335,160 | $143,640 | $478,800 | $5,618 |
| 2007 | $270,144 | $115,776 | $385,920 | $4,335 |
Property facts
Year built
1948
Property type
single_family
Stories
1
Beds
2
Baths
1
Living area
905 sqft
Lot size
5,040 sqft
ZIP code
94546
City
Castro Valley
Street
Ada St
Coordinates
37.68811, -122.07432
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$2,896
Gross rental yield
4.11%
Implied cap rate
2.67%
Trend-extrapolated value
—
Frequently asked questions
When did 21852 Ada St last sell?
21852 Ada St most recently sold on Feb 4, 2022 for $845,000.
What is the current tax assessment for 21852 Ada St?
The most recent total assessment for 21852 Ada St (year 2025) is $896,713 with $11,558 in property tax.
How does 21852 Ada St's assessment compare to its last sale price?
The current assessment is 6.1% above the last sale price of $845,000.
When was 21852 Ada St built?
21852 Ada St was built in 1948.
How does 21852 Ada St compare to others on Ada St?
We track 3 other properties on Ada St. Browse the list under "Other properties on Ada St" to compare beds, baths, and sale history.
What are the property facts for 21852 Ada St?
21852 Ada St is a 2 bed, 1 bath, 905 sqft, 5,040 sqft lot single_family.
Is 21852 Ada St a flip candidate?
No — 21852 Ada St does not appear in our flips dataset.
Is 21852 Ada St a tax-appeal candidate?
No — 21852 Ada 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
-2.1%
Implied 1-yr
-8.4%
2026 Q3
$875.4K
2026 Q4
$875.4K
ZIP 94546 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Ada St