121 Costanza Dr, Martinez, CA 94553 Property Records

Contra Costa County property record for 121 Costanza Dr, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,080 sqft · built 1989
Lot Size	0.22 acres (9,600 sqft)
Owner	2 Company Names on Record
Last Sale	$875,000 (Jun 2015)
Tax Bill	$13,225 (2025)
Deeds & Mortgages	Apr 2021 Transfer Jun 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`155-560-006-1`

Property Details

APN / Parcel Number

Primary APN	`155-560-006-1`
Alternative APN	`155-560-006`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,080 sqft Living Area
1st Floor Area	1,284 sqft
2nd Floor Area	796 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1995
Architectural Style	Contemporary
Exterior Material	Stucco
Roof Material	Tile
Lot Area	9,600 sqft (0.22 acres)
Garage Type	Attached
Garage Area	638 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	121 COSTANZA DR
City	MARTINEZ
State	CA
Zip	94553-6625
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T6758 L15
Legal Subdivision	MAP/SUB 6758
Legal Tract	6758
Legal Lot Number	15
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3001
Census Tract	321102

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	2 Company Names on Record
Mailing Address	121 COSTANZA DR, MARTINEZ, CA 94553-6625
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Apr 5, 2021	Intrafamily Transfer, Transfer
Jun 1, 2020	Deed of Trust, Mortgage · Conventional Mortgage PACIFIC SVC CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 23, 2015 · Amount on Record
Deed Sale	Jun 23, 2015 · Amount on Record
Prior Sale	Dec 28, 1995 · Amount on Record
Deed Document Number	2015128352
Prior Transfer Date	Dec 9, 1993
Prior Transfer Doc	0000363822
Record Updated	Oct 29, 2026

April 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 5, 2021
Property Address	121 COSTANZA DR, MARTINEZ, CA 94553-6625
Document Number	0000101839
Map Reference	MB 305 PG 13
Instrument Date	Mar 25, 2021
Instrument	2021-101839
Transaction Type	Transfer
Record Updated	Jun 7, 2023

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
Relationship	Family Trust
Address	121 COSTANZA DR, MARTINEZ, CA 94553-6625

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	121 COSTANZA DR, MARTINEZ, CA 94553-6625
Document Number	0000109004
Instrument Date	Jun 1, 2020
Transaction Type	Mortgage
Record Updated	Jun 16, 2020
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	121 COSTANZA DR MARTINEZ CA 945536625, MARTINEZ, CA 94553-6625

Mortgage

Document Number	0000109004
Date	Jun 8, 2020
Instrument	109004

Lender

Name	PACIFIC SVC CU
Address	CONCORD, CA 94519

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Jun 7, 2035

Tax Assessment & Valuation

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	Martinez Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,072,641 (+2%) Land $490,351 Building $582,290
2025	$13,225.00 (+6.51%) Homeowner's exemption	$1,051,610 (+4.04%) Land $480,737 Building $570,873
2023	$12,417.00 (+1.71%) Homeowner's exemption	$1,010,776 Land $462,070 Building $548,706
2022	$12,208.00

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

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
Nearby Flood Claims	2 (1982–1995)
Claims Outside the SFHA	1 of 2
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

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

Wildfire Risk	Moderate above 51% of the US · lower than 70% of California
Wildfire Likelihood	0.1% 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 329 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless · DSL	100 / 20

May also be available: Astound Broadband, Verizon.

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