20124 Sapphire St
Castro Valley, CA 94546
3 bd 1 ba 1,060 sqft Built 1950 Lot 6,254 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 | $573,062 | $246,066 | $819,128 | $11,118 |
| 2024 | $573,062 | $246,066 | $819,128 | $10,303 |
| 2023 | $550,813 | $236,513 | $787,326 | $10,141 |
| 2022 | $540,013 | $231,876 | $771,889 | $9,950 |
| 2021 | $529,428 | $227,331 | $756,759 | $9,697 |
| 2020 | $524,000 | $225,000 | $749,000 | $9,477 |
| 2019 | $168,637 | $70,265 | $238,902 | $3,620 |
| 2018 | $165,331 | $68,888 | $234,219 | $3,517 |
| 2017 | $162,090 | $67,537 | $229,627 | $3,423 |
| 2016 | $158,912 | $66,213 | $225,125 | $3,257 |
| 2015 | $156,525 | $65,219 | $221,744 | $3,045 |
| 2014 | $153,459 | $63,941 | $217,400 | $2,991 |
| 2013 | $152,767 | $63,653 | $216,420 | $2,951 |
| 2012 | $149,772 | $62,405 | $212,177 | $2,886 |
| 2010 | $146,835 | $61,181 | $208,016 | $4,836 |
| 2009 | $268,861 | $115,226 | $384,087 | $2,748 |
| 2008 | $143,221 | $59,675 | $202,896 | $2,633 |
| 2007 | $140,413 | $58,505 | $198,918 | $2,564 |
Property facts
Year built
1950
Property type
single_family
Stories
1
Beds
3
Baths
1
Living area
1,060 sqft
Lot size
6,254 sqft
ZIP code
94546
City
Castro Valley
Street
Sapphire St
Coordinates
37.69673, -122.05963
Comparable properties nearby
Frequently asked questions
When did 20124 Sapphire St last sell?
No public-record sale is on file for 20124 Sapphire St.
What is the current tax assessment for 20124 Sapphire St?
The most recent total assessment for 20124 Sapphire St (year 2025) is $819,128 with $11,118 in property tax.
When was 20124 Sapphire St built?
20124 Sapphire St was built in 1950.
How does 20124 Sapphire St compare to others on Sapphire St?
We do not currently track other properties on Sapphire St.
What are the property facts for 20124 Sapphire St?
20124 Sapphire St is a 3 bed, 1 bath, 1,060 sqft, 6,254 sqft lot single_family.
Is 20124 Sapphire St a flip candidate?
No — 20124 Sapphire St does not appear in our flips dataset.
Is 20124 Sapphire St a tax-appeal candidate?
No — 20124 Sapphire 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
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Geography