Contra Costa County property record for 3870 Adelaide Dr, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 955 sqft · built 1953 |
| Lot Size | 0.179 acres (7,800 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $620,000 (Oct 2021) |
| Tax Bill | $8,764 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage Oct 2021 Sale & Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 161-231-042-3 |
| Primary APN | 161-231-042-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 955 sqft Living Area |
| 1st Floor Area | 955 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1980 |
| Lot Area | 7,800 sqft (0.179 acres) |
| Garage Type | Attached |
| Garage Area | 210 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 3870 ADELAIDE DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3005 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | VINE HILL VILLAGE LOT 38 |
| Legal Subdivision | VINE HILL VILLAGE |
| Legal Lot Number | 38 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2014 |
| Census Tract | 320001 |
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 Individual Names on Record |
|---|---|
| Mailing Address | 3870 ADELAIDE DR, MARTINEZ, CA 94553-3005 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Apr 16, 2021 | Deed of Trust, Mortgage · VA Mortgage QUICKEN LOANS LLC |
| Oct 21, 2021 | Grant Deed, Transfer · Conventional Mortgage FAIRWAY INDEPENDENT MORTGAGE CORP |
| Nov 20, 2018 | Grant Deed, Transfer USAA |
| Apr 27, 2018 | Grant Deed, Transfer · Construction Mortgage PRIVATE INDIVIDUAL |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 21, 2021 · Amount on Record |
| Deed Sale | Oct 21, 2021 · Amount on Record |
| Prior Sale | Nov 20, 2018 · Amount on Record |
| Deed Document Number | 2021296106 |
| Prior Transfer Date | Apr 4, 1996 |
| Prior Transfer Doc | 0000061441 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3870 ADELAIDE DR, MARTINEZ, CA 94553-3005 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | AMROCK TITLE CALIFORNIA |
| Name | Verified Name |
|---|---|
| Address | 3870 ADELAIDE DR, MARTINEZ, CA 94553-3005 |
| Document Number | 0000115120 |
|---|---|
| Date | Apr 16, 2021 |
| Instrument | 2021-115120 |
| Name | QUICKEN LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | VA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 1, 2051 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 21, 2021 |
| Property Address | 3870 ADELAIDE DR, MARTINEZ, CA 94553-3005 |
| Document Number | 0000296106 |
| Map Reference | MB 48 PG 3 |
| Instrument Date | Oct 18, 2021 |
| Instrument | 2021-296106 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3870 ADELAIDE DR, MARTINEZ, CA 94553-3005 |
| Document Number | 0000296107 |
|---|---|
| Date | Oct 21, 2021 |
| Instrument | 2021-296107 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 1, 2051 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 20, 2018 |
| Property Address | 3870 ADELAIDE DR, MARTINEZ, CA 94553-3005 |
| Document Number | 0000187914 |
| Instrument Date | Nov 16, 2018 |
| Instrument | 187914 |
| Transaction Type | Transfer |
| Record Updated | Dec 6, 2018 |
| Title Company | NORTH AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $508.75 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 3870 ADELAIDE DR MARTINEZ CA 945533005, MARTINEZ, CA 94553-3005 |
| Document Number | 187915 |
|---|---|
| Date | Nov 20, 2018 |
| Instrument | 187915 |
| Name | USAA |
|---|---|
| Address | SAN ANTONIO, TX 78288-0544 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Nov 19, 2048 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 27, 2018 |
| Property Address | 3870 ADELAIDE DR, MARTINEZ, CA 94553-3005 |
| Document Number | 0000065974 |
| Instrument Date | Apr 17, 2018 |
| Instrument | 65974 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2018 |
| Title Company | NORTH AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $332.20 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 204 SOUTH AVE ALAMO CA 945072136, ALAMO, CA 94507-2136 |
| Document Number | 65975 |
|---|---|
| Date | Apr 27, 2018 |
| Instrument | 65975 |
| Name | PRIVATE INDIVIDUAL |
|---|---|
| Type | Private Party |
| Address | 26 JUSTIN CIR, ALAMEDA, CA 94502-7431 |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 12 Months |
| Due | Apr 26, 2019 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Martinez Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $671,106 (+2%) Land $541,216 Building $129,890 | |
| 2025 | $8,764.00 (+7.05%) | $657,948 (+4.04%) Land $530,604 Building $127,344 |
| 2023 | $8,187.00 (+2.52%) | $632,400 Land $510,000 Building $122,400 |
| 2022 | $7,986.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 22 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 22 in force |
| Nearby Flood Claims | 11 (1986–2022) |
| Claims Outside the SFHA | 2 of 11 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
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.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 208 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 |
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