Alameda County  »  21000 Greenwood Cir

21000 Greenwood Circle, Castro Valley, CA 94552 Property Information

21000 Greenwood Circle, Castro Valley, CA 94552 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21000 Greenwood Circle, Castro Valley, CA 94552
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Address

Primary address 21000 Greenwood Circle, Castro Valley
Zip code 94552
County Alameda
Parcel ID 85A-6410-80-1

Sales & Tax Overview for 21000 Greenwood Circle, Castro Valley

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

Sale date 12/30/1998
Sale price $235,000
Arm's length
Property tax $2,452

Lot & Building Information for 21000 Greenwood Circle, Castro Valley

Building sqft 1,324
Building class Single Family Residential - Duet Style (1400)
Acreage 0.06
Units 1
Year built 1990
Stories 2
Bedrooms 2
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Planned Development (PD-1529)
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 21000 Greenwood Circle, Castro Valley

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  • • Improvements for 21000 Greenwood Circle, Castro Valley , including their type, square footage, grade and when they were built.
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About 21000 Greenwood Circle, Castro Valley

What is the year built & the total sq. ft. for 21000 Greenwood Circle, Castro Valley, CA 94552?

21000 Greenwood Circle, Castro Valley, CA 94552 was built in 1990 and has a total of 1,324 square feet.

What is the assessed value of 21000 Greenwood Circle, Castro Valley, CA 94552 and the property tax paid?

Assessed at $210,672, the tax amount paid for 21000 Greenwood Circle, Castro Valley, CA 94552 is $2,452.

When was 21000 Greenwood Circle, Castro Valley, CA 94552 last sold?

21000 Greenwood Circle, Castro Valley, CA 94552 was last sold in 09/24/2012.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
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  • 2000+ governmental and public data sources
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Past Sales & Property History for 21000 Greenwood Circle, Castro Valley

Create a free account to view the complete sales history for 21000 Greenwood Circle, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
12/30/1998 $235,000

Title Documents for 21000 Greenwood Circle, 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
02/11/2021 Deed of trust 03/01/2051
09/24/2012 Grant Deed
09/21/2012 Deed of Trust 10/01/2042
09/21/2012 Grant Deed
07/22/1999 Deed
12/30/1998 Deed
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R: Recorded date
D: Document date

Property Taxes for 21000 Greenwood Circle, Castro Valley

Access detailed property tax data for 21000 Greenwood Circle, Castro Valley, CA 94552. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $2,452
Market value $210,672

Assessment History for 21000 Greenwood Circle, Castro Valley

Here's the assessment & property tax history for 21000 Greenwood Circle, 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 $210,672 1.164 $2,452 +0.69%
2024-2025 $206,543 1.1791 $2,435 -48.84%
2023-2024 $202,494 2.3508 $4,760 +101.36%
2022-2023 $198,524 1.1908 $2,364 +2.52%
2021-2022 $194,632 1.1848 $2,306 +2.29%

Permits for 21000 Greenwood Circle, Castro Valley

The complete history of permits filed for 21000 Greenwood Circle, 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.

Data not available for this property.

Castro Valley residential market stats

Median Sale Price
$989,000
-8.4% YoY
Median Price/Sqft
$669
3.4% YoY
Alameda County Median Sale Price
$965,000
-7.1% 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 21000 Greenwood Circle, 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 21000 Greenwood Circle, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Jensen Ranch Elementary School 9 Public K-5 382 0.25
Liberty School NR Private 1-12 0 1.03
Palomares Elementary School 8 Public K-5 121 1.04
Montessori School At Five Canyons NR Private PK-K 13 1.41
Montessori School At Five Canyons NR Private PK-K 13 1.41

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Liberty School NR Private 1-12 0 1.03
Canyon Middle School 6 Public 6-8 1,332 1.31
Creekside Middle School 8 Public 6-8 760 1.91
Northstar School NR Private PK-8 152 2.02
Castro Valley Adult And Career Education NR Public 0 2.34

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Liberty School NR Private 1-12 0 1.03
Castro Valley Adult And Career Education NR Public 0 2.34
Alma Preschool NR Public 52 2.37
Redwood Christian Schools NR Private K-12 706 2.46
Castro Valley High School 9 Public 9-12 2,799 2.71

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

Neighbors for 21000 Greenwood Circle, Castro Valley

Here are the neighbors for 21000 Greenwood Circle, Castro Valley.

Address Square feet Purchase date Purchase price
21024 Greenwood Cir, Castro Valley 1,875 02/04/2022
21060 Greenwood Cir, Castro Valley 1,561 06/19/2018
21108 Greenwood Cir, Castro Valley 1,875 05/17/1989 $244,000
6490 Ridgewood Dr, Castro Valley 2,254 07/05/1990 $393,000
19628 MT Lassen Dr, Castro Valley 3,022 04/13/2004 $725,000
6301 MT Olympus Dr, Castro Valley 2,327 07/20/2000
6380 Ridgewood Dr, Castro Valley 2,250 05/26/1994 $320,000
21048 Greenwood Cir, Castro Valley 1,561 09/23/1998
21072 Greenwood Cir, Castro Valley 1,579 08/07/2017
6505 Ridgewood Dr, Castro Valley 2,250
6460 Ridgewood Dr, Castro Valley 2,250 07/13/2009 $620,500
6390 Ridgewood Dr, Castro Valley 2,256 02/19/2008
6349 MT Olympus Dr, Castro Valley 3,022
21096 Greenwood Cir, Castro Valley 1,875 04/24/2019 $897,000
21168 Greenwood Cir, Castro Valley 1,561 07/10/2020 $880,000
6400 Ridgewood Dr, Castro Valley 1,978 05/23/2023
19175 Carson Ln, Castro Valley 2,975 04/03/2003
6350 Ridgewood Dr, Castro Valley 1,978 08/08/2016
21132 Greenwood Cir, Castro Valley 1,561 02/03/2022 $1,100,000
19664 MT Lassen Dr, Castro Valley 2,505 10/30/1992 $354,000

Nearby ZIP Codes for 21000 Greenwood Circle, Castro Valley

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