Alameda County  »  94578  »  Cowell St  »  16646 Cowell St

16646 Cowell Street, San Leandro, CA 94578 - Property report

Also known as: 16646 Cowell St

Property image for 16646 Cowell Street, San Leandro, CA 94578
static Mapbox map

Property type

Single Family Residential Homes Used as Such (1100)

Year built

1946

Acreage

1.17

General Information

Address
Primary address
16646 Cowell St
San Leandro, CA 94578
Zip code
94578
County
Alameda
Parcel ID
84B-326-1-2

Owner

Find out who owns 16646 Cowell Street, San Leandro, CA 94578. Uncover corporate and individual owners with a free account.

Tax
Tax year
2026-2027
Base tax
$3,395
Current property tax
$3,314
Tax per sq. ft.
$2
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
1,936
Stories
10
Year built
1946
Building material
Wood/wood and steel frames
Rooms
9
Elevator
Bedrooms
4
Bathrooms
20
Lot
Acreage
1.17
Zoning & use
Zoning
Single Family Residential (R1-CSU-RV)

Area overview

Walk score
33 /100.  Car-Dependent
Transit score
30 /100.  Some Transit
Bike score
12 /100.  Somewhat Bikeable
School district
CASTRO VLY UNIF SCH
Ownership

Ownership information for 16646 Cowell Street, San Leandro, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 16646 Cowell Street, San Leandro, CA 94578

No recently recorded sales for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
03/16/2022 Ucc amendment(1-2 pgs) XXXXXXX XXX XXXXXXX XXXXXXXX
01/28/2022 Reconveyance XXXXXXX XXXXXXXX X
01/18/2022 Deed of trust XXXXXXX XXXXXXXX X XXXXXXXX XXX
07/28/2020 Ucc fin stmt(1-2 pgs) XXXXXXX XXXXXXXX XXXXXXX XXX
06/30/2020 Grant Deed XXXXXXX XXXXXXXX X XXXXXXX XXXXXXXX XXX XX
06/30/2020 Deed of trust XXXXXXX XXXXXXXX X XXXXXX XXXXXX XXXXX
06/30/2020 Grant Deed XXXXXXX XXXXXXXX X XX XXXXXXX XXXXXXXX X
10/25/2006 Deed XXXXXXX, XXXXXX & XXXXXXXX X XXXXXXX XXXXXX & X X XXXXX
10/25/2006 Deed XXXXXXX XXXXXX & X X XXXXX XXXXXXX, XXXXXX & XXXXXXXX X
05/04/2004 Deed XXXXXXX, XXXXXX & XXXXXXXX X XXXXXXX, XX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 16646 Cowell Street, San Leandro, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2026-2027
Base tax
$3,395
Current property tax
$3,314
Tax per sq. ft.
$2
Recent tax assessments
Market value
$291,690
Land value
$169,692
Building value
$121,998

More about Alameda County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $285,971 1.164 $3,329 +0.69%
2024-2025 $280,364 1.1791 $3,306 -48.84%
2023-2024 $274,868 2.3508 $6,462 +101.36%
2022-2023 $269,479 1.1908 $3,209 +2.52%
2021-2022 $264,195 1.1848 $3,130 +2.28%
2020-2021 $261,487 1.1703 $3,060 -2.00%
2019-2020 $256,361 1.218 $3,122 +2.87%
2018-2019 $251,335 1.2077 $3,035 +2.65%
2017-2018 $246,408 1.2001 $2,957 +18.18%
2016-2017 $241,576 1.0358 $2,502 -4.87%
Permits

Permit information for 16646 Cowell Street, San Leandro, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
11/15/2022
06/16/2020
06/16/2020
03/24/2017

*Most recent permits on record for this property.

Neighborhood

Castro Valley residential market stats

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.

Median sale price

$1,013,750

-2.9% Y-o-Y

Median price/sq. ft.

$619

-9.8% Y-o-Y

Alameda county median sale price

$955,000

-6.4% Y-o-Y

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

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 16646 Cowell Street, San Leandro, CA 94578 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Camelot School NR Private K 14 0.29
Stanton Elementary School 6 Public K-5 492 0.29
Montessori School Of San Leandro NR Private PK-K 130 0.38
Montessori School Of San Leandro NR Private PK-K 130 0.38
Anchor Education, Inc. School NR Private 3-12 0 0.63
Sterling West San Francisco Campus NR Private 3-11 27 0.64
Chabot Elementary School 8 Public K-5 470 0.70
Hillside Elementary School 2 Public K-5 371 0.93
Castro Valley Virtual Academy 7 Public K-12 67 0.96
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Anchor Education, Inc. School NR Private 3-12 0 0.63
Sterling West San Francisco Campus NR Private 3-11 27 0.64
Anchor Education, Inc. NR Private 3-12 18 0.66
Our Lady Of Grace School NR Private K-8 218 0.88
Seneca Family Of Agencies - James Baldwin Academy NR Private 4-12 75 0.89
Castro Valley Virtual Academy 7 Public K-12 67 0.96
Edendale Middle School 2 Public 6-8 500 1.08
Alma Preschool NR Public 52 1.59
Castro Valley Adult And Career Education NR Public 0 1.63
Knowledge Enlightens You (Key) Academy 5 Charter K-8 614 1.72
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Anchor Education, Inc. School NR Private 3-12 0 0.63
Sterling West San Francisco Campus NR Private 3-11 27 0.64
Anchor Education, Inc. NR Private 3-12 18 0.66
Seneca Family Of Agencies - James Baldwin Academy NR Private 4-12 75 0.89
Castro Valley Virtual Academy 7 Public K-12 67 0.96
Roy A. Johnson High School NR Public 9-12 24 0.96
Redwood Continuation High School 3 Public 9-12 122 0.96
Lighthouse Christian Academy NR Private K-12 30 1.10
Castro Valley High School 9 Public 9-12 2,799 1.23
East Bay Arts High School 4 Public 9-12 188 1.52

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 16646 Cowell Street, San Leandro, CA

2629 Miramar Ave, Castro Valley 2639 Miramar Ave, Castro Valley 2627 Miramar Ave, Castro Valley 19217 Stanton Ave, Castro Valley 2315 Somerset Ave, Castro Valley 2323 Somerset Ave, Castro Valley 2591 Miramar Ave, Castro Valley 2621 Miramar Ave, Castro Valley 2657 Miramar Ave, Castro Valley 19543 Yuma St, Castro Valley 2538 Somerset Ave, Castro Valley 19507 Yuma St, Castro Valley 2653 Miramar Ave, Castro Valley 19225 Stanton Ave, Castro Valley 19249 Stanton Ave, Castro Valley 2427 Somerset Ave, Castro Valley 2335 Somerset Ave, Castro Valley 24 Crest Ave, Castro Valley 2310 Bramble CT, Castro Valley 19501 Yuma St, Castro Valley

Nearby ZIP codes for 16646 Cowell Street, San Leandro, CA

94502, Alameda County, CA 94541, Alameda County, CA 94542, Alameda County, CA 94544, Alameda County, CA 94545, Alameda County, CA 94546, Alameda County, CA 94552, Alameda County, CA 94577, Alameda County, CA 94579, Alameda County, CA 94580, Alameda County, CA 94601, Alameda County, CA 94602, Alameda County, CA 94603, Alameda County, CA 94605, Alameda County, CA 94613, Alameda County, CA 94619, Alameda County, CA 94621, Alameda County, CA

Frequently asked questions

What is the year built for 16646 Cowell Street, San Leandro, CA 94578?

The development at 16646 Cowell Street, San Leandro, CA 94578 was built in 1946.

What is the total square footage of 16646 Cowell Street, San Leandro, CA 94578?

16646 Cowell Street, San Leandro, CA 94578 has a total of 1,936 square feet.

What is the assessed value of 16646 Cowell Street, San Leandro, CA 94578?

16646 Cowell Street, San Leandro, CA 94578 is currently assessed at $285,971.

What are the property taxes for 16646 Cowell Street, San Leandro, CA 94578?

The property taxes for 16646 Cowell Street, San Leandro, CA 94578 total $3,328.

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Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.

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