4655 Blum Rd, Martinez, CA 94553 Property Records

Contra Costa County property record for 4655 Blum Rd, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,302 sqft · built 1947
Lot Size	0.242 acres (10,560 sqft)
Owner	Individual Name on Record
Last Sale	$551,000 (Sep 2023)
Tax Bill	$7,672 (2025)
Deeds & Mortgages	Feb 2026 Mortgage Sep 2023 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`159-163-001-5`

Property Details

APN / Parcel Number

Primary APN	`159-163-001-5`
Alternative APN	`159-163-001`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,302 sqft Living Area
1st Floor Area	1,302 sqft

Exterior

Year Built	Built 1947
Effective Year Built	Effective 1962
Lot Area	10,560 sqft (0.242 acres)
Garage Type	Attached
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	4655 BLUM RD
City	MARTINEZ
State	CA
Zip	94553-3611
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R7
Legal Description	HELMOND SHEPARD TRACT LOT 24
Legal Subdivision	HELMOND-SHEPARD
Legal Lot Number	24
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1009
Census Tract	320004

Owner

Source: Contra Costa County records, as of July 14, 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 Record
Mailing Address	4655 BLUM RD, MARTINEZ, CA 94553-3611
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Man

Deeds, Mortgages & Sale History

Date	Document
Feb 2, 2026	Intrafamily Transfer, Transfer · Conventional Mortgage ALAMEDA MORTGAGE CORP
Sep 27, 2023	Grant Deed, Subdivision Related Transfer · Conventional Mortgage WESTCOAST MORTGAGE GROUP & REALTY C
Jun 28, 2023	Grant Deed, Construction Loan · Construction Mortgage KIAVI FUNDING INC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 27, 2023 · Amount on Record
Deed Sale	Sep 27, 2023 · Amount on Record
Prior Sale	Jun 28, 2023 · Amount on Record
Deed Document Number	202393487
Prior Transfer Date	Sep 7, 2011
Prior Transfer Doc	0000187323
Record Updated	Sep 20, 2026

February 2026: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 2, 2026
Property Address	4655 BLUM RD, MARTINEZ, CA 94553-3611
Document Number	0000010429
Map Reference	MB 29 PG 49
Instrument Date	Jan 15, 2026
Instrument	2026- 010429
Transaction Type	Transfer
Record Updated	Feb 11, 2026
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4655 BLUM RD, MARTINEZ, CA 94553-3611

Mortgage

Document Number	0000010430
Date	Feb 2, 2026
Instrument	2026- 010430

Lender

Name	ALAMEDA MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Feb 1, 2056

September 2023: Grant Deed, Subdivision Related Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 27, 2023
Property Address	4655 BLUM RD, MARTINEZ, CA 94553-3611
Document Number	0000093487
Map Reference	MB 29 PG 9
Instrument Date	Sep 19, 2023
Instrument	2023-093487
Transaction Type	Subdivision Related Transfer
Record Updated	Oct 6, 2023
Title Company	TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO

Transaction

Amount	Amount Recorded
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	4655 BLUM RD, MARTINEZ, CA 94553-3611

Mortgage

Document Number	0000093488
Date	Sep 27, 2023
Instrument	2023-093488

Lender

Name	WESTCOAST MORTGAGE GROUP & REALTY C
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Oct 1, 2053

June 2023: Grant Deed, Construction Loan

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 28, 2023
Property Address	4655 BLUM RD, MARTINEZ, CA 94553-3611
Document Number	0000061378
Map Reference	MB 29 PG 49
Instrument Date	Jun 24, 2023
Instrument	2023-061378
Transaction Type	Construction Loan
Record Updated	Jul 6, 2023
Title Company	TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO

Transaction

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

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1990 N CALIFORNIA BLVD # 46, 46, WALNUT CREEK, CA 94596-3742
Investor	Possibly a Property Investor

Mortgage

Document Number	0000061379
Date	Jun 28, 2023
Instrument	2023-061379

Lender

Name	KIAVI FUNDING INC
Type	Mortgage Company

Agreement

Type	Construction Mortgage
Amount	Amount Recorded

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$603,432 (+2%) Land $447,372 Building $156,060
2025	$7,672.00 (+107.18%)	$591,600 (+145.02%) Land $438,600 Building $153,000
2023	$3,703.00 (+2.69%)	$241,446 (+2%) Land $181,811 Building $59,635
2022	$3,606.00	$236,713 Land $178,247 Building $58,466

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 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 6 (20% premium discount)
Nearby Flood Policies	4 in force
Nearby Flood Claims	1 (2017)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 2017 · Severe Winter Storms, Flooding, And Mudslides

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	Low lower than 97% of the US · lower than 97.8% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None 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 System	CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003
Water Source	Surface water
Last State Inspection	Jan 2022
Lead	Under 1 ppb (2026–2028) 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 244 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Fiber · Cable in parts of the area	1,500 / 1,500
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, Verizon.

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