688 Sonoma Ave, Livermore, CA 94550 Property Records

Alameda County property record for 688 Sonoma Ave, Livermore, CA 94550

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,900 sqft · built 1962
Lot Size	0.175 acres (7,600 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,008,000 (Aug 2021)
Tax Bill	$13,304 (2025)
Deeds & Mortgages	Aug 2021 Sale & Mortgage Aug 2021 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`99-308-78`

Property Details

APN / Parcel Number

Primary APN	`99-308-78`
Alternative APN	`099-0308-078-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,900 sqft Living Area

Exterior

Year Built	Built 1962
Effective Year Built	Effective 1963
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	7,600 sqft (0.175 acres)

Location & Zoning

Street Address	688 SONOMA AVE
City	LIVERMORE
State	CA
Zip	94550-4061
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00020 BLK: TR: 2264
Legal Subdivision	2264 LIVERMORE
Legal Tract	2264
Legal Lot Number	20
Jurisdiction	ALAMEDA CA
Township / Civil Division	LIVERMORE-PLEASANTON
Census Block Group	1
Census Block	1005
Census Tract	451701

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 Record	2 Individual Names on Record
Mailing Address	688 SONOMA AVE, LIVERMORE, CA 94550-4061
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Aug 31, 2021	Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE AFFINITY LLC
Aug 31, 2021	Intrafamily Transfer, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Jun 28, 2019	Affidavit of Death, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 31, 2021 · Amount on Record
Deed Sale	Aug 31, 2021 · Amount on Record
Deed Document Number	2021295659
Prior Transfer Date	Aug 11, 2021
Prior Transfer Doc	0000296140
Record Updated	Oct 29, 2026

August 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Aug 31, 2021
Property Address	688 SONOMA AVE, LIVERMORE, CA 94550-4061
Document Number	0000295659
Map Reference	MB 44 PG 74&75
Instrument Date	Aug 11, 2021
Instrument	2021295659
Transaction Type	Transfer
Record Updated	Sep 21, 2021
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	688 SONOMA AVE, LIVERMORE, CA 94550-4061

Mortgage

Document Number	0000295660
Date	Aug 31, 2021
Instrument	2021295660

Lender

Name	GUARANTEED RATE AFFINITY LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2051

August 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Aug 31, 2021
Property Address	688 SONOMA AVE, LIVERMORE, CA 94550-4061
Document Number	0000296140
Map Reference	MB 44 PG 74&75
Instrument Date	Aug 11, 2021
Instrument	2021296140
Transaction Type	Transfer
Record Updated	Sep 21, 2021
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	688 SONOMA AVE, LIVERMORE, CA 94550-4061

June 2019: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	ALAMEDA CA
Recording Date	Jun 28, 2019
Property Address	688 SONOMA AVE, LIVERMORE, CA 94550-4061
Document Number	0000123679
Instrument Date	Jun 11, 2019
Instrument	123679
Transaction Type	Transfer
Record Updated	Jul 26, 2019
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	688 SONOMA AVE LIVERMORE CA 945504061, LIVERMORE, CA 94550-4061

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Municipality	Livermore City
Unified School District	Livermore Valley Joint Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,091,078 (+2%) Land $327,323 Building $763,755
2025	$13,304.00 (+3.36%)	$1,069,688 (+4.04%) Land $320,906 Building $748,782
2023	$12,871.00	$1,028,160 Land $308,448 Building $719,712	$1,186,200

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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	1 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 Risk	Not rated no burnable land within 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 System	CALIFORNIA WATER SERVICE - LIVERMORE private · serves 60,414 people · EPA ID CA0110003
Water Source	Purchased surface water from ZONE 7 WATER AGENCY
Last State Inspection	Dec 2024
Also Mapped Here	CITY OF LIVERMORE
Lead	8 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 348 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 2,000
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

May also be available: T-Mobile.

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