Alameda County » 94546 » Gem Ave » 4328 Gem Ave

4328 Gem Avenue, Castro Valley, CA 94546 - Property report

Also known as: 4328 Gem Ave

Property image for 4328 Gem Avenue, Castro Valley, CA 94546

Property type

Single Family Residential Homes Used as Such (1100)

Year built

1949

Acreage

1.15

Sale price

$700,000

General Information

Address

Primary address

4328 Gem Ave
Castro Valley, CA 94546

Zip code

94546

County

Alameda

Parcel ID

84C-1063-9

Sales

Sale date

11/09/2017

Sale price

$700,000

Arm's length

Tax

Tax year

2026-2027

Property tax

$9,456

Tax per sq. ft.

Building

Property type

Single Family Residential Homes Used as Such

Building sq. ft.

1,012

Stories

Year built

1949

Building material

Wood/wood and steel frames

Rooms

Elevator

Bedrooms

Bathrooms

Lot

Acreage

1.15

Zoning & use

Zoning

Single Family Residential (R1-CSU-RV)

Units

Area overview

Walk score

68 /100. Somewhat Walkable

Transit score

31 /100. Some Transit

Bike score

52 /100. Bikeable

School district

CASTRO VLY UNIF SCH

Ownership

Ownership information for 4328 Gem Avenue, Castro Valley, CA

Property owner name

Registered owner

Source

Deed

Owner contact information

Phone number

Owner address

Documents

Sales history for 4328 Gem Avenue, Castro Valley, CA 94546

Sale date	Sale price	Buyer name	Seller name
11/09/2017	$700,000	XX XXX XXXX; XX XXX XXXX	XXXXXX XX & XXXXXXXXXXX XXX
08/16/2017	$455,000	XXXXXX XX & XXXXXXXXXXX XXX	XXXXXXXXX XXXXXXX X; XXXXXXXXX XXXXX XXX
01/03/1989	$160,000	XXXXXXXX, XXXXX & XXX XXXX	XXXXXX, X.&X. XXX

*Most recent sales on record for this property.

More about Alameda County property records.

Title documents

Date	Type	Party 1	Party 2
08/27/2025	Trust Transfer Deed	XX XXX XXXX	XX XXXXXXX XXX & XX
12/22/2020	Deed of trust	XX XXX XXXX	XXXXXXX XXXXXXX XXXXXXXX XXX
02/03/2020	Deed of trust	XX XXX XXXX	XXXX XXXX
11/30/2017	Reconveyance		XXXXXX XX & XXXXXXXXXXX XXX
11/09/2017	Deed of Trust	XX XXX XXXX	XXXX XXXXXXX XXXXXXX XXX
11/09/2017	Corporation Grant Deed	XXXXXX XX & XXXXXXXXXXX XXX	XX XXX XXXX
08/16/2017	Assignment of Rents Deed of Trust Ucc Fin STMT(1-2 PGS)	XXXXXX XX & XXXXXXXXXXX XXX	XXX XXXXXXX XXXXXXXX XXXX XXX
08/16/2017	Grant Deed	XXXXXXXXX XXXXXXX X	XXXXXX XX & XXXXXXXXXXX XXX
01/08/2013	Gift Deed	XXXXXXXX XXXXX	XXXXXXXXX XXXXXXX X
12/19/2012	Affidavit of Death	XXXXXXXX XXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 4328 Gem Avenue, Castro Valley, CA

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

Current property tax

Tax year

2026-2027

Property tax

$9,456

Tax per sq. ft.

Recent tax assessments

Market value

$812,391

Land value

$243,717

Building value

$568,674

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	$796,466	1.164	$9,271	+0.69%
2024-2025	$780,850	1.1791	$9,207	-48.84%
2023-2024	$765,540	2.3508	$17,996	+101.36%
2022-2023	$750,532	1.1908	$8,937	+2.52%
2021-2022	$735,818	1.1848	$8,718	+2.29%
2020-2021	$728,280	1.1703	$8,523	-1.99%
2019-2020	$714,000	1.218	$8,697	+2.87%
2018-2019	$700,000	1.2077	$8,454	+65.98%
2017-2018	$424,411	1.2001	$5,093	+18.18%
2016-2017	$416,091	1.0358	$4,310	-4.87%

Permits

Permit information for 4328 Gem Avenue, Castro Valley, CA

*Most recent permit 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

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 4328 Gem Avenue, 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)
Marshall Elementary School	9	Public	K-5	491	0.28
Early Bird Montessori School	NR	Private	PK, K-1	30	0.39
Early Bird Montessori School	NR	Private	PK, K-1	30	0.39
Independent Elementary School	8	Public	K-5	634	0.56
Vannoy Elementary School	7	Public	K-5	441	0.64
Northstar School	NR	Private	PK-8	152	0.76
Northstar School	NR	Private	PK-8	152	0.76
Redwood Christian Elementary School	NR	Private	K-5	282	0.86
Castro Valley Adult And Career Education	NR	Public		0	0.88
Special Education-Preschool-Laurel	NR	Public		1	0.91

Nearest middle schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Creekside Middle School	8	Public	6-8	760	0.10
Canyon Middle School	6	Public	6-8	1,332	0.70
Northstar School	NR	Private	PK-8	152	0.76
Castro Valley Adult And Career Education	NR	Public		0	0.88
Special Education-Preschool-Laurel	NR	Public		1	0.91
Alma Preschool	NR	Public		52	0.92
Redwood Christian Schools	NR	Private	K-12	706	0.93
Our Lady Of Grace School	NR	Private	K-8	218	1.24
Liberty School	NR	Private	1-12	0	1.54
Stellar Preparatory High School	NR	Private	9	0	1.58

Nearest high schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Castro Valley Adult And Career Education	NR	Public		0	0.88
Special Education-Preschool-Laurel	NR	Public		1	0.91
Alma Preschool	NR	Public		52	0.92
Redwood Christian Schools	NR	Private	K-12	706	0.93
Castro Valley High School	9	Public	9-12	2,799	1.04
Liberty School	NR	Private	1-12	0	1.54
Stellar Preparatory High School	NR	Private	9	0	1.58
Anchor Education, Inc.	NR	Private	3-12	18	1.64
Sterling West San Francisco Campus	NR	Private	3-11	27	1.65
Hayward High School	5	Public	9-12	1,712	1.89

Nearby ZIP codes for 4328 Gem Avenue, Castro Valley, CA

94541, Alameda County, CA 94542, Alameda County, CA 94544, Alameda County, CA 94545, Alameda County, CA 94552, Alameda County, CA 94577, Alameda County, CA 94578, Alameda County, CA 94579, Alameda County, CA 94580, Alameda County, CA 94601, 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 4328 Gem Avenue, Castro Valley, CA 94546?

The development at 4328 Gem Avenue, Castro Valley, CA 94546 was built in 1949.

What is the total square footage of 4328 Gem Avenue, Castro Valley, CA 94546?

4328 Gem Avenue, Castro Valley, CA 94546 has a total of 1,012 square feet.

When was 4328 Gem Avenue, Castro Valley, CA 94546 last sold and what was the sale price?

4328 Gem Avenue, Castro Valley, CA 94546 was last sold on 11/09/2017 for $700,000.

What is the assessed value of 4328 Gem Avenue, Castro Valley, CA 94546?

4328 Gem Avenue, Castro Valley, CA 94546 is currently assessed at $812,391.

What are the property taxes for 4328 Gem Avenue, Castro Valley, CA 94546?

The property taxes for 4328 Gem Avenue, Castro Valley, CA 94546 total $9,456.

Disclaimer

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

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.