18790 Sandy Rd, Castro Valley, CA 94546 Property Records

Alameda County property record for 18790 Sandy Rd, Castro Valley, CA 94546

Property Summary

Property TypeSingle Family Home
Details2 bd · 2 ba · 1,332 sqft · built 1952
Lot Size0.115 acres (5,022 sqft)
OwnerIndividual Name on Record
Last Sale$350,000 (Feb 2011)
Tax Bill$6,077 (2025)
Deeds & MortgagesOct 2021 Mortgage
Flood ZoneZone X (minimal risk)
APN84C-865-21

Property Details

APN / Parcel Number

Primary APN84C-865-21
Alternative APN
  • 084C-0865-021-00

Interior

Bedrooms2 Beds
Full Baths2 Baths
Total Rooms5 Rooms
Stories1 Story
Building Area1,332 sqft Living Area

Exterior

Year BuiltBuilt 1952
Effective Year BuiltEffective 1952
Architectural StyleL-Shape
Construction TypeWood
Lot Area5,022 sqft (0.115 acres)
Garage TypeCarport
CarportCarport

Location & Zoning

Street Address18790 SANDY RD
CityCASTRO VALLEY
StateCA
Zip94546-2426
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT: 00002 BLK: 0007 TR: 0863
Legal Subdivision863 EDEN TOWNSHIP
Legal Tract0863
Legal Block7
Legal Lot Number2
JurisdictionALAMEDA CA
Township / Civil DivisionHAYWARD
Census Block Group4
Census Block4011
Census Tract430200

Owner

Source: Alameda County records, as of August 5, 2026

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

Owner of RecordIndividual Name on Record
Mailing Address18790 SANDY RD, CASTRO VALLEY, CA 94546-2426
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleFeb 15, 2011 · Amount on Record
Deed SaleFeb 15, 2011 · Amount on Record
Deed Document Number201156839
Last Transfer DateOct 15, 2021
Transfer Doc0000353293
Record UpdatedSep 20, 2026

October 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionALAMEDA CA
Recording DateOct 26, 2021
Property Address18790 SANDY RD, CASTRO VALLEY, CA 94546-2426
Document Number0000353293
Map ReferenceMB 27 PG 79
Instrument DateOct 15, 2021
Instrument2021353293
Transaction TypeTransfer
Record UpdatedNov 12, 2021

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address18790 SANDY RD, CASTRO VALLEY, CA 94546-2426

Mortgage

Document Number0000353294
DateOct 26, 2021
Instrument2021353294
Lender
NameFIRSTBANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueNov 1, 2051

Tax Assessment & Valuation

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyAlameda County
Unified School DistrictCastro Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$450,351 (+0.44%) Land $137,205 Building $320,146
2025$6,077.00 (+4.27%) Homeowner's exemption$448,384 (+4.04%) Land $134,515 Building $313,869
2023$5,828.00 Homeowner's exemption$430,978 Land $129,293 Building $301,685$799,470

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

Flood

Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemEAST BAY MUD
serves 1,468,000 people · EPA ID CA0110005
Water SourceSurface water
Last State InspectionDec 2021
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 724 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Sonic Telecom
Fiber
10,000 / 10,000
AT&T
Fiber · Fixed Wireless, DSL in parts of the area
5,000 / 5,000
Xfinity
Cable
2,000 / 250
Verizon
Fixed Wireless
300 / 20

May also be available: Etheric Networks, GeoLinks, T-Mobile.

Nearby Properties on Sandy Rd

Nearby Streets

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