Alameda County  »  94546  »  Knox St  »  1877 Knox St

1877 Knox Street, Castro Valley, CA 94546 - Property report

Also known as: 1877 Knox St

Property image for 1877 Knox Street, Castro Valley, CA 94546
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Property type

Single Family Residential Homes Used as Such (1100)

Year built

1947

Acreage

0.17

Sale price

$792,500

General Information

Address
Primary address
1877 Knox St
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
415-220-43

Owner

Find out who owns 1877 Knox Street, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Sales
Sale date
08/31/2022
Sale price
$792,500
Arm's length
Tax
Tax year
2025-2026
Base tax
$9,667
Current property tax
$9,585
Tax per sq. ft.
$6
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
1,596
Stories
1
Year built
1947
Building material
Wood/wood and steel frames
Rooms
7
Elevator
Bedrooms
4
Bathrooms
1
Lot
Acreage
0.17
Zoning & use
Zoning
Single Family Residential (R1-CSU-RV)
Units
1

Area overview

Walk score
82 /100.  Very Walkable
Transit score
46 /100.  Some Transit
Bike score
67 /100.  Bikeable
School district
HAYWARD UNIF SCH
Ownership

Ownership information for 1877 Knox Street, Castro Valley, CA

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

Sales history for 1877 Knox Street, Castro Valley, CA 94546

Sale date Sale price Buyer name Seller name
08/31/2022 $792,500 XX XXXXXXX; XXX XXXXXX XXXXXXXX XXXXXXX XXXX XXXXXX XXXXX; XXXXXXX XXXXXX X XX; XXXXX XXXXXXX X XX; XXXXXX XXXXXXX X XX; XXXXXXXX XXXXXXX X XXXXXX XXXXX

*Most recent sale on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
08/31/2022 Deed of trust XX XXXXXXX XXXXXXXX XXXXXXX XXXXXXXX XXXXXXXXXXX
08/31/2022 Deed of trust XX XXXXXXX XXXXXXXX XXXXXXX XXXXXXXX XXXXXXXXXXX
08/31/2022 Grant Deed XXXXXXXX XXXXXXX XXXX XXXXXX XXXXX XX XXXXXXX
08/31/2022 Interspousal Transfer Grant Deed XXX XXXXX XX XXXXXXX
08/31/2022 Affidavit of death XXXXXXXX XXXXXXX XXXX
05/15/2018 Affidavit of Death XXXXXXXX XXXXXXX X XX
12/30/1994 Deed XXXXXXXX, XXXXXXX X XXXXXXXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 1877 Knox Street, Castro Valley, CA

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

Current property tax
Tax year
2025-2026
Base tax
$9,667
Current property tax
$9,585
Tax per sq. ft.
$6
Recent tax assessments
Market value
$824,516
Land value
$247,303
Building value
$577,213

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 $824,516 1.1724 $9,667 +6.43%
2024-2025 $767,000 1.1842 $9,083 -20.33%
2023-2024 $729,000 1.5638 $11,400 +885.94%
2022-2023 $97,263 1.1888 $1,156 +0.81%
2021-2022 $95,356 1.2028 $1,147 +1.17%
2020-2021 $94,379 1.2012 $1,134 -0.87%
2019-2020 $92,528 1.236 $1,144 +6.95%
2018-2019 $90,714 1.1788 $1,069 +2.50%
2017-2018 $88,936 1.173 $1,043 +6.33%
2016-2017 $87,191 1.1252 $981 +1.44%
Permits

Permit information for 1877 Knox Street, Castro Valley, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
08/03/2018
07/23/2018

*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 1877 Knox Street, Castro Valley, CA 94546 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)
Vita Academy NR Private 1-6 0 0.24
The Montessori Giving Tree NR Private K-6 12 0.37
Special Education-Preschool-Laurel NR Public 1 0.42
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.46
All Saints Catholic School NR Private K-8 203 0.70
Liber Community School NR Private 4-12 0 0.76
Strobridge Elementary School NR Public K-6 362 0.81
Castro Valley Elementary School 6 Public K-5 472 1.16
Crossroads Christian Elementary School NR Private K-6 0 1.18
Marshall Elementary School 9 Public K-5 491 1.20
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Stellar Preparatory High School NR Private 9 0 0.41
Special Education-Preschool-Laurel NR Public 1 0.42
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.46
All Saints Catholic School NR Private K-8 203 0.70
Liber Community School NR Private 4-12 0 0.76
Bret Harte Middle School 5 Public 7-8 545 0.91
Victory Academy NR Private 7, 9-11 0 1.06
Northstar School NR Private PK-8 152 1.23
Silver Oak High Public Montessori Charter NR Charter 1-12 553 1.36
Knowledge Enlightens You (Key) Academy 5 Charter K-8 614 1.36
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Stellar Preparatory High School NR Private 9 0 0.41
Special Education-Preschool-Laurel NR Public 1 0.42
Liber Community School NR Private 4-12 0 0.76
Stellar Preparatory High School NR Private 9-11 26 0.85
Hayward High School 5 Public 9-12 1,712 0.91
Victory Academy NR Private 7, 9-11 0 1.06
Silver Oak High Public Montessori Charter NR Charter 1-12 553 1.36
Hayward Twin Oaks Montessori 7 Charter 1-12 218 1.40
Hayward Adult NR Public 0 1.43
Brenkwitz High School 2 Public 9-12 179 1.44

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

Neighbors for 1877 Knox Street, Castro Valley, CA

22341 N 6th St, Castro Valley 1536 Knox St, Castro Valley 21927 Baywood Ave, Castro Valley 22318 N 5th St, Castro Valley 22427 N 5th St, Castro Valley 22481 N 5th St, Castro Valley 22333 N 6th St, Castro Valley 1663 Crescent Ave, Castro Valley 1848 Crescent Ave, Castro Valley 1741 Knox St, Castro Valley 22366 N 5th St, Castro Valley 1654 Crescent Ave, Castro Valley 22490 Ruby St, Castro Valley 1560 Crescent Ave, Castro Valley 22434 Ruby St, Castro Valley 1618 Crescent Ave, Castro Valley 1636 Crescent Ave, Castro Valley 22442 Ruby St, Castro Valley 21746 Shadyspring Rd, Castro Valley 1672 Crescent Ave, Castro Valley

Nearby ZIP codes for 1877 Knox Street, Castro Valley, CA

94542, Alameda County, CA 94579, Alameda County, CA 94601, Alameda County, CA 94613, Alameda County, CA 94619, Alameda County, CA

Frequently asked questions

What is the year built for 1877 Knox Street, Castro Valley, CA 94546?

The development at 1877 Knox Street, Castro Valley, CA 94546 was built in 1947.

What is the total square footage of 1877 Knox Street, Castro Valley, CA 94546?

1877 Knox Street, Castro Valley, CA 94546 has a total of 1,596 square feet.

When was 1877 Knox Street, Castro Valley, CA 94546 last sold and what was the sale price?

1877 Knox Street, Castro Valley, CA 94546 was last sold on 08/31/2022 for $792,500.

What is the assessed value of 1877 Knox Street, Castro Valley, CA 94546?

1877 Knox Street, Castro Valley, CA 94546 is currently assessed at $824,516.

What are the property taxes for 1877 Knox Street, Castro Valley, CA 94546?

The property taxes for 1877 Knox Street, Castro Valley, CA 94546 total $9,666.

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