21635 Knoll Way
Castro Valley, CA 94546
3 bd 2 ba 1,570 sqft Built 1960 Lot 6,758 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 | $677,466 | $282,156 | $959,622 | $12,209 |
| 2024 | $677,466 | $282,156 | $959,622 | $11,880 |
| 2023 | $651,164 | $271,201 | $922,365 | $11,731 |
| 2022 | $638,397 | $265,884 | $904,281 | $11,475 |
| 2021 | $608,236 | $260,672 | $868,908 | $11,141 |
| 2020 | $602,000 | $258,000 | $860,000 | $10,986 |
| 2019 | $459,770 | $197,044 | $656,814 | $8,749 |
| 2018 | $450,757 | $193,181 | $643,938 | $8,204 |
| 2017 | $441,918 | $189,393 | $631,311 | $8,001 |
| 2016 | $433,255 | $185,681 | $618,936 | $7,551 |
| 2015 | $426,750 | $182,892 | $609,642 | $7,388 |
| 2014 | $418,390 | $179,310 | $597,700 | $7,018 |
| 2013 | $213,180 | $91,290 | $304,470 | $3,883 |
| 2012 | $209,000 | $89,500 | $298,500 | $3,815 |
| 2010 | $308,000 | $132,000 | $440,000 | $4,455 |
| 2009 | $259,000 | $111,000 | $370,000 | $6,600 |
| 2008 | $408,562 | $175,098 | $583,660 | $6,781 |
| 2007 | $400,554 | $171,666 | $572,220 | $6,296 |
Property facts
Year built
1960
Property type
single_family
Stories
1
Beds
3
Baths
2
Living area
1,570 sqft
Lot size
6,758 sqft
ZIP code
94546
City
Castro Valley
Street
Knoll Way
Coordinates
37.68388, -122.08623
Comparable properties nearby
Frequently asked questions
When did 21635 Knoll Way last sell?
No public-record sale is on file for 21635 Knoll Way.
What is the current tax assessment for 21635 Knoll Way?
The most recent total assessment for 21635 Knoll Way (year 2025) is $959,622 with $12,209 in property tax.
When was 21635 Knoll Way built?
21635 Knoll Way was built in 1960.
How does 21635 Knoll Way compare to others on Knoll Way?
We track 5 other properties on Knoll Way. Browse the list under "Other properties on Knoll Way" to compare beds, baths, and sale history.
What are the property facts for 21635 Knoll Way?
21635 Knoll Way is a 3 bed, 2 bath, 1,570 sqft, 6,758 sqft lot single_family.
Is 21635 Knoll Way a flip candidate?
No — 21635 Knoll Way does not appear in our flips dataset.
Is 21635 Knoll Way a tax-appeal candidate?
No — 21635 Knoll Way 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 Knoll Way