2103 Lost Lake Pl, Martinez, CA 94553 Property Records

Contra Costa County property record for 2103 Lost Lake Pl, Martinez, CA 94553

Property Summary

Property Type	Townhouse
Details	2 bd · 2 ba · 1,018 sqft · built 1984
Lot Size	0.037 acres (1,612 sqft)
Owner	2 Company Names on Record
Last Sale	$625,000 (Jul 2025)
Tax Bill	$7,006 (2025)
Deeds & Mortgages	Nov 2020 Mortgage Feb 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`155-510-043-5`

Property Details

APN / Parcel Number

Primary APN	`155-510-043-5`
Alternative APN	`155-510-043`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,018 sqft Living Area
Gross Area	1,501 sqft
1st Floor Area	725 sqft
2nd Floor Area	293 sqft

Exterior

Year Built	Built 1984
Effective Year Built	Effective 1985
Architectural Style	Townhouse
Lot Area	1,612 sqft (0.037 acres)
Garage Type	Attached
Garage Area	483 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	2103 LOST LAKE PL
City	MARTINEZ
State	CA
Zip	94553-6422
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Local Zoning Code	R75
Legal Description	T06302 L0043 B
Legal Subdivision	SUBDIVISION 6302
Legal Tract	06302
Legal Lot Number	43
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1010
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	594 WILLOW CT, BENICIA, CA 94510-1447
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Nov 9, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Feb 9, 2018	Grant Deed, Transfer · Conventional Mortgage PRIVATE MORTGAGE ADVISORS LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 3, 2025 · Amount on Record
Deed Sale	Jul 3, 2025 · Amount on Record
Prior Sale	Feb 9, 2018 · Amount on Record
Deed Document Number	202567435
Prior Transfer Date	Nov 3, 2020
Prior Transfer Doc	0000267355
Record Updated	Oct 29, 2026

November 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 9, 2020
Property Address	2103 LOST LAKE PL, MARTINEZ, CA 94553-6422
Document Number	0000267355
Map Reference	MB 271 PG 24
Instrument Date	Nov 3, 2020
Instrument	2020-267355
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE CO

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	2103 LOST LAKE PL, MARTINEZ, CA 94553-6422

Mortgage

Document Number	0000267356
Date	Nov 9, 2020
Instrument	2020-267356

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 1, 2050

February 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 9, 2018
Property Address	2103 LOST LAKE PL, MARTINEZ, CA 94553-6422
Document Number	0000021166
Map Reference	MB 271 PG 24
Instrument Date	Feb 6, 2018
Instrument	2018-021166
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE SF

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
Address	2103 LOST LAKE PL, MARTINEZ, CA 94553-6422

Mortgage

Document Number	0000021167
Date	Feb 9, 2018
Instrument	2018-021167

Lender

Name	PRIVATE MORTGAGE ADVISORS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2048

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	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$625,000 (+15.64%) Land $350,000 Building $275,000
2025	$7,006.00 (+4.15%)	$540,465 (+4.04%) Land $341,347 Building $199,118
2023	$6,727.00 (+0.84%)	$519,480 Land $328,093 Building $191,387
2022	$6,671.00

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
Community Rating System	Class 9 (5% 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	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 445 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
AT&T DSL	100 / 20

May also be available: Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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