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643 Alberta Ave, Sunnyvale, CA 94087 Property Records

Santa Clara County property record for 643 Alberta Ave, Sunnyvale, CA 94087 · Last verified August 2023

Property Summary

Property TypeDuplex
Details2,750 sqft · built 1967
Lot Size0.184 acres (8,056 sqft)
Owner2 Individual Names on File
Last Sale$1,060,000 (Jul 2008)
Deeds & MortgagesJan 2021 Mortgage
Flood ZoneZone X (moderate risk)
APN323-28-020

Property Details

APN / Parcel Number

Primary APN323-28-020

Interior

Units2 Units
Stories1 Story
Building Area2,750 sqft Total Area
FireplaceFireplace
ElevatorElevator

Exterior

Year BuiltBuilt 1967
Architectural StyleOther
Construction TypeWood
Lot Area8,056 sqft (0.184 acres)
Lot Dimensions106 ft deep x 76 ft wide

Utilities, Heating & Cooling

Cooling SystemNone
Heating SystemCentral

Location & Zoning

Street Address643 ALBERTA AVE
CitySUNNYVALE
StateCA
Zip94087-4360
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Legal DescriptionTR 3820 LOT 41
Legal SubdivisionSERRA TERRACE
Legal Tract3820
Legal Lot Number41
JurisdictionSANTA CLARA CA
Township / Civil DivisionSAN JOSE
Census Block Group2
Census Block2016
Census Tract508306

Owner

Source: Santa Clara County records · APN 323-28-020

Assessment roll updated July 1, 2023 · Last verified August 2023

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

Owner of Record2 Individual Names on File
Mailing Address641 ALBERTA AVE, SUNNYVALE, CA 94087-4360
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJul 28, 2008 · Amount on Record
Deed SaleJul 28, 2008 · Amount on Record
Prior SaleFeb 28, 2007
Deed Document Number19936658
Record UpdatedJun 07, 2026

January 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSANTA CLARA CA
Property Address643 ALBERTA AVE, SUNNYVALE, CA 94087-4360
Transaction TypeMortgage
Record UpdatedFeb 05, 2021
Title CompanyWFG NATIONAL TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address643 ALBERTA AVE, SUNNYVALE, CA 94087-4360

Mortgage

Document Number0024782210
DateJan 11, 2021
Instrument24782210
Lender
NameGUARANTEED RATE INC
TypeMortgage Company
AddressCHICAGO, IL 60613
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueFeb 01, 2051

Tax Assessment & Valuation

Source: Santa Clara County records · Assessment roll updated July 1, 2023 · Last verified August 2023

Property Jurisdictions

TypeName
StateCalifornia
CountySanta Clara County
MunicipalitySunnyvale City
Elementary School DistrictCupertino Union Elementary School District (KG - 08)
Secondary School DistrictFremont Union High School District (09 - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

YearAssessed Value
2023$1,312,012 Land $1,113,978 Building $198,034

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Santa Clara County (06085C), updated January 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardModerate
500-Year FloodplainYes

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 589 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
Etheric Communications, LLC.Fixed Wireless (licensed-by-rule)250 / 100
AT&TFixed Wireless100 / 20
AT&TDSL100 / 20

May also be available at this address: AT&T, T-Mobile USA, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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