612 Rock Isle, Alameda, CA 94501 Property Records

Alameda County property record for 612 Rock Isle, Alameda, CA 94501

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 2,225 sqft · built 1968
Lot Size0.149 acres (6,500 sqft)
OwnerCompany Name on Record
Tax Bill$7,328 (2025)
Flood ZoneZone X (moderate risk)
APN74-1270-91

Property Details

APN / Parcel Number

Primary APN74-1270-91
Alternative APN
  • 074-1270-091-00

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms7 Rooms
Stories1 Story
Building Area2,225 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1968
Effective Year BuiltEffective 1979
Architectural StyleL-Shape
Exterior MaterialStucco
Construction TypeWood
Roof MaterialComposition Shingle
Lot Area6,500 sqft (0.149 acres)

Utilities, Heating & Cooling

Heating SystemForced Air with A/C
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address612 ROCK ISLE
CityALAMEDA
StateCA
Zip94501-5632
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionLOT: 00131 BLK: 0001 TR: 1898
Legal SubdivisionSOUTH SHORE UNIT #2
Legal Tract1898
Legal Block1
Legal Lot Number131
JurisdictionALAMEDA CA
Township / Civil DivisionALAMEDA
Census Block Group1
Census Block1001
Census Tract428600

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 RecordCompany Name on Record
Mailing Address612 ROCK ISLE, ALAMEDA, CA 94501-5632
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateNov 19, 2012
Transfer Doc0000389401
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyAlameda County
MunicipalityAlameda City
Unified School DistrictAlameda City Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$504,363 (+0.6%) Land $169,655 Building $341,708
2025$7,328.00 (+6.76%) Homeowner's exemption$501,337 (+4.04%) Land $166,329 Building $335,008
2023$6,864.00 Homeowner's exemption$481,871 Land $159,870 Building $322,001$1,405,080

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
moderate risk
500-Year FloodplainYes
0.2% annual chance
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 8 (10% premium discount)
Nearby Flood Policies4 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 98% of the US · lower than 98.4% of California
Wildfire LikelihoodUnder 0.01% 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 736 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
Unwired
Fixed Wireless
300 / 25
Verizon
Fixed Wireless
300 / 20
Etheric Networks
Fixed Wireless
250 / 100
T-Mobile
Fixed Wireless
100 / 20

May also be available: GeoLinks.

Nearby Properties on Rock Isle

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