20036 Gem Ct, Castro Valley, CA 94546 Property Records

Alameda County property record for 20036 Gem Ct, Castro Valley, CA 94546 · Last verified August 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	2 Baths
Year Built	Built 1965
Square Footage	1,488 sqft Living Area
Lot Size	18,413 sqft (0.423 acres)
Occupancy	Owner Occupied
Tax Bill	$6,536.00 (2025)

Primary APN	`84C-1064-55`
Alternative APN	`084C-1064-055-00`

Heating System	Floor/Wall Furnace Heating

Street Address	20036 GEM CT
City	CASTRO VALLEY
State	CA
Zip	94546-4742
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOT: 00012 BLK: 0002 TR: 0979 ;LOT: 00055 BLK: AR: 084C PAGE: 1064
Legal Tract	0979
Legal Block	2
Legal Lot Number	12
Jurisdiction	ALAMEDA CA
Minor Civil Division	HAYWARD
Census Blockgroup	3
Census Block	3003
Census Tract	430800

Source: Alameda County records · APN 84C-1064-55

Assessment roll updated August 5, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	20036 GEM CT, CASTRO VALLEY, CA 94546-4742
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 2026

Type	Name
State	California
County	Alameda County
Unified School District	Castro Valley Unified School District (KG - 12)

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$489,981 (+0.56%) Land $124,732 Building $372,249
2025	$6,536.00 (+4.23%) Homeowner's exemption	$487,237 (+4.04%) Land $122,286 Building $364,951
2023	$6,271.00 Homeowner's exemption	$468,319 Land $117,538 Building $350,781	$897,390