Alameda County  »  20070 Sapphire St

20070 Sapphire Street, Castro Valley, CA 94546 Property Information

20070 Sapphire Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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20070 Sapphire Street, Castro Valley, CA 94546
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Address

Primary address 20070 Sapphire Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84C-1064-81

Sales & Tax Overview for 20070 Sapphire Street, Castro Valley

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 07/28/2023
Sale price $930,000
Arm's length
Current property tax $10,960

Lot & Building Information for 20070 Sapphire Street, Castro Valley

Building sqft 1,060
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.14
Units 1
Year built 1950
Stories 1
Bedrooms 3
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single Family Residential (R1-CSU-RV)
School district Castro Vly Unif SCH

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 20070 Sapphire Street, Castro Valley

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  • • Improvements for 20070 Sapphire Street, Castro Valley , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 20070 Sapphire Street, Castro Valley

What is the year built & the total sq. ft. for 20070 Sapphire Street, Castro Valley, CA 94546?

20070 Sapphire Street, Castro Valley, CA 94546 was built in 1950 and has a total of 1,060 square feet.

What is the assessed value of 20070 Sapphire Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $948,600, the tax amount paid for 20070 Sapphire Street, Castro Valley, CA 94546 is $11,041.

When was 20070 Sapphire Street, Castro Valley, CA 94546 last sold?

20070 Sapphire Street, Castro Valley, CA 94546 was last sold in 10/01/2025.

Ownership Information

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Real Estate Reports:
Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs
Q2 2026 saw NYC and Manhattan reach historic highs, with Brooklyn and Queens marking close to new records as well. Meanwhile, Hudson Yards remained at the top, Central Midtown posted its highest price ever and Carroll Gardens marked its third consecutive quarter over $2 million
Laura Pop-Badiu, Jul 15, 2026 How to Find Property Owners — The Complete Guide 
For real estate professionals looking for the best ways to find property owners — whether through free methods based on public sources or paid tools with verified, in-depth data — this comprehensive guide breaks down every step of the due diligence process.
Eliza Theiss, Jul 08, 2026 2026 Q2 Foreclosure Report: Bronx Caseload Hits 7-Year High, Brooklyn & Manhattan Slow to 4-Year Low
Manhattan yet again slowed to become the city’s least active foreclosure market, Brooklyn’s caseload dropped so low it barely edged out Staten Island, while the Bronx heated up enough to surpass all boroughs except Queens.
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Past Sales & Property History for 20070 Sapphire Street, Castro Valley

Create a free account to view the complete sales history for 20070 Sapphire Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
07/28/2023 $930,000
06/07/2005 $635,000
05/24/1996 $147,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 20070 Sapphire Street, Castro Valley

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
11/10/2025 Deed of trust 12/01/2055
10/01/2025 Quitclaim Deed Trust Transfer
01/06/2025 Deed of trust 01/01/2055
04/05/2024 Deed of trust 05/01/2054
12/14/2023 Notice
12/14/2023 Ucc fin stmt(3&+pgs)
07/28/2023 Deed of trust 08/01/2053
07/28/2023 Grant Deed
12/22/2016 Deed of Trust 01/01/2047
09/03/2013 Appointment of Trustee
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R: Recorded date
D: Document date

Property Taxes for 20070 Sapphire Street, Castro Valley

Access detailed property tax data for 20070 Sapphire Street, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $11,042
Current property tax $10,960
Market value $948,600

Assessment History for 20070 Sapphire Street, Castro Valley

Here's the assessment & property tax history for 20070 Sapphire Street, Castro Valley, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $948,600 1.164 $11,042 +0.69%
2024-2025 $930,000 1.1791 $10,966 +487.41%
2023-2024 $79,410 2.3508 $1,867 +101.36%
2022-2023 $77,854 1.1908 $927 +2.55%
2021-2022 $76,327 1.1848 $904 +2.25%

Permits for 20070 Sapphire Street, Castro Valley

The complete history of permits filed for 20070 Sapphire Street, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Issued Permit Type Status
09/29/2023
       
       
       
       
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Castro Valley residential market stats

Median Sale Price
$1,013,750
-2.9% YoY
Median Price/Sqft
$619
-9.8% YoY
Alameda County Median Sale Price
$955,000
-6.4% YoY

Access a detailed real estate market overview of Castro Valley so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Castro Valley and compare it to other neighborhoods in Alameda County.

Check out recently sold homes in Castro-Valley and see how their prices compare.

Risk

Create a free account to unlock extended information for 20070 Sapphire Street, Castro Valley, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 20070 Sapphire Street, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Marshall Elementary School 9 Public K-5 491 0.37
Early Bird Montessori School NR Private PK, K-1 30 0.48
Early Bird Montessori School NR Private PK, K-1 30 0.48
Independent Elementary School 8 Public K-5 634 0.49
Northstar School NR Private PK-8 152 0.67

Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Creekside Middle School 8 Public 6-8 760 0.19
Northstar School NR Private PK-8 152 0.67
Canyon Middle School 6 Public 6-8 1,332 0.70
Special Education-Preschool-Laurel NR Public 1 0.91
Castro Valley Adult And Career Education NR Public 0 0.98

Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.91
Castro Valley Adult And Career Education NR Public 0 0.98
Alma Preschool NR Public 52 1.02
Redwood Christian Schools NR Private K-12 706 1.02
Castro Valley High School 9 Public 9-12 2,799 1.14

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 20070 Sapphire Street, Castro Valley

Here are the neighbors for 20070 Sapphire Street, Castro Valley.

Address Square feet Purchase date Purchase price
4310 Veronica Ave, Castro Valley 1,106 08/20/2008 $440,000
4316 Veronica Ave, Castro Valley 1,326 04/16/1999
4342 Veronica Ave, Castro Valley 1,106 09/30/2021
20068 Emerald CT, Castro Valley 1,382 08/19/2021 $860,000
4348 Veronica Ave, Castro Valley 1,414 04/08/2009 $300,000
4413 Gem Ave, Castro Valley 827 01/02/1990 $155,000
20106 Sapphire St, Castro Valley 1,060 06/18/2018 $766,000
4351 Veronica Ave, Castro Valley 2,212 05/11/2017
20089 Emerald CT, Castro Valley 1,468 01/12/2026 $925,000
20113 Emerald CT, Castro Valley 1,676 12/10/2007
20048 Sapphire St, Castro Valley 1,596 06/09/2026 $982,000
4534 Newhaven Way, Castro Valley 1,572 04/17/2026 $1,210,000
20046 Emerald CT, Castro Valley 1,276 02/05/2010 $330,000
20016 Gem CT, Castro Valley 1,060 11/26/2007
19640 Center St, Castro Valley 2,916 02/13/2013
4527 Newhaven Way, Castro Valley 1,297 12/23/2020
4562 Paradise Knls, Castro Valley 1,481
4786 Noree CT, Castro Valley 1,830 08/25/2021
4322 Veronica Ave, Castro Valley 1,223
19552 Center St, Castro Valley 2,437

Nearby ZIP Codes for 20070 Sapphire Street, Castro Valley

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