21735 Ada St
Castro Valley, CA 94546
3 bd 1 ba 1,170 sqft Built 1947 Lot 6,030 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 | $475,249 | $203,678 | $678,927 | $8,970 |
| 2024 | $475,249 | $203,678 | $678,927 | $8,749 |
| 2023 | $456,797 | $195,770 | $652,567 | $8,589 |
| 2022 | $447,841 | $191,932 | $639,773 | $8,396 |
| 2021 | $439,061 | $188,169 | $627,230 | $8,307 |
| 2020 | $434,561 | $186,240 | $620,801 | $8,200 |
| 2019 | $426,043 | $182,590 | $608,633 | $8,262 |
| 2018 | $417,690 | $179,010 | $596,700 | $7,755 |
| 2017 | $409,500 | $175,500 | $585,000 | $7,563 |
| 2016 | $349,300 | $149,700 | $499,000 | $6,375 |
| 2015 | $290,500 | $124,500 | $415,000 | $5,354 |
| 2014 | $273,000 | $117,000 | $390,000 | $4,883 |
| 2013 | $227,500 | $97,500 | $325,000 | $4,137 |
| 2012 | $206,500 | $88,500 | $295,000 | $3,793 |
| 2010 | $203,000 | $87,000 | $290,000 | $3,846 |
| 2009 | $214,200 | $91,800 | $306,000 | $3,898 |
| 2008 | $330,935 | $141,829 | $472,764 | $5,628 |
| 2007 | $324,448 | $139,049 | $463,497 | $5,208 |
Property facts
Year built
1947
Property type
single_family
Stories
1
Beds
3
Baths
1
Living area
1,170 sqft
Lot size
6,030 sqft
ZIP code
94546
City
Castro Valley
Street
Ada St
Coordinates
37.68834, -122.07477
Comparable properties nearby
Frequently asked questions
When did 21735 Ada St last sell?
No public-record sale is on file for 21735 Ada St.
What is the current tax assessment for 21735 Ada St?
The most recent total assessment for 21735 Ada St (year 2025) is $678,927 with $8,970 in property tax.
When was 21735 Ada St built?
21735 Ada St was built in 1947.
How does 21735 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 21735 Ada St?
21735 Ada St is a 3 bed, 1 bath, 1,170 sqft, 6,030 sqft lot single_family.
Is 21735 Ada St a flip candidate?
No — 21735 Ada St does not appear in our flips dataset.
Is 21735 Ada St a tax-appeal candidate?
No — 21735 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