2140 Blackrock Pl, Martinez, CA 94553 Property Records

Contra Costa County property record for 2140 Blackrock Pl, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,789 sqft · built 1985
Lot Size	0.06 acres (2,600 sqft)
Owner	Individual Name on File
Last Sale	$819,000 (Jul 2025)
Tax Bill	$8,894 (2025)
Deeds & Mortgages	Jun 2021 Mortgage Jul 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`155-532-034-8`

Property Details

APN / Parcel Number

Primary APN	`155-532-034-8`
Alternative APN	`155-532-034`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	1,789 sqft Living Area
1st Floor Area	886 sqft
2nd Floor Area	903 sqft

Exterior

Year Built	Built 1985
Effective Year Built	Effective 1986
Architectural Style	Cluster
Lot Area	2,600 sqft (0.06 acres)
Garage Type	Attached
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	2140 BLACKROCK PL
City	MARTINEZ
State	CA
Zip	94553-4957
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	PUD
Legal Description	T05579 L0094 B
Legal Subdivision	SUBDIVISION 5579
Legal Tract	05579
Legal Lot Number	94
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1003
Census Tract	321101

Owner

2140 Blackrock Pl is owned and occupied by an individual who bought it in July 2025.

Source: Contra Costa County records, as of July 14, 2026

Owner of Record	Individual Name on File
Mailing Address	2140 BLACKROCK PL, MARTINEZ, CA 94553-4957
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Woman

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jun 28, 2021	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Jul 13, 2020	Grant Deed, Transfer · Conventional with PMI QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jul 23, 2025 · Amount on File
Deed Sale	Jul 23, 2025 · Amount on File
Prior Sale	Jul 13, 2020 · Amount on File
Deed Document Number	202573944
Prior Transfer Date	Nov 11, 2016
Prior Transfer Doc	0000246433
Record Updated	Oct 29, 2026

June 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	2140 BLACKROCK PL, MARTINEZ, CA 94553-4957
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2140 BLACKROCK PL, MARTINEZ, CA 94553-4957

Mortgage

Document Number	0000184204
Date	Jun 28, 2021
Instrument	2021-184204

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2051

July 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 13, 2020
Property Address	2140 BLACKROCK PL, MARTINEZ, CA 94553-4957
Document Number	0000138768
Instrument Date	Jul 2, 2020
Instrument	138768
Transaction Type	Transfer
Record Updated	Jul 21, 2020
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$721.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	2140 BLACKROCK PL MARTINEZ CA 945534957, MARTINEZ, CA 94553-4957

Mortgage

Document Number	138769
Date	Jul 13, 2020
Instrument	138769

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional with PMI
Amount	Amount on Record
Term	360 Months
Due	Jul 12, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 2140 Blackrock Pl was $8,894.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$819,000 (+15.52%) Land $439,000 Building $380,000
2025	$8,894.00	$708,991 Land $384,262 Building $324,729
2023	$8,545.00 (+0.84%)	$681,462 Land $369,342 Building $312,120
2022	$8,474.00

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

Flood

FEMA maps place 2140 Blackrock Pl in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1995.

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
Nearby Flood Policies	1 in force
Nearby Flood Claims	1 (1995)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 1995 · Severe Winter Storms, Flooding, Landslides, Mud Flows

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

Wildfire risk around 2140 Blackrock Pl is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.2% 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 688 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
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Verizon.

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