Contra Costa County property record for 818 Shell Ave, Martinez, CA 94553 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1954 |
| Square Footage | 1,272 sqft Living Area |
| Lot Size | 6,200 sqft (0.142 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $162,000 (1998) |
| Tax Bill | $4,168.00 (2025) |
| Primary APN | 375-100-019-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,272 sqft Living Area |
| 1st Floor | 1,272 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Lot Area | 6,200 sqft (0.142 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 444 sqft Garage |
| Street Address | 818 SHELL AVE |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3325 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | HARBOR VIEW HEIGHTS LOT 6 |
| Legal Subdivision | HARBORFRONT |
| Legal Lot Number | 6 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3016 |
| Census Tract | 319002 |
Source: Contra Costa County records · APN 375-100-019-5
Assessment roll updated July 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Date | Document |
|---|---|
| Aug 22, 2023 | Deed of Trust, Mortgage · Stand Alone Second Mortgage ROCKET MORTGAGE LLC |
| Jul 25, 2017 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Jan 18, 2022 | Intrafamily Transfer, Transfer AMROCK LLC |
| Jan 18, 2022 | Intrafamily Transfer, Transfer · Conventional Mortgage ROCKET MORTGAGE LLC |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | May 28, 1998 · Amount on Record |
| Deed Sale | May 28, 1998 · Amount on Record |
| Prior Sale | Mar 11, 1998 |
| Deed Doc Number | 1998118366 |
| Last Transfer Date | Jan 12, 2022 |
| Transfer Doc | 0000010033 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Transaction Type | Mortgage |
| Record Updated | Aug 31, 2023 |
| Name | Verified Name |
|---|---|
| Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Document Number | 0000080812 |
|---|---|
| Date | Aug 22, 2023 |
| Instrument | 2023-080812 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Stand Alone Second Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 241 Months |
| Due | Sep 01, 2043 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000133037 |
|---|---|
| Date | Jul 25, 2017 |
| Instrument | 2017-133037 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2047 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 18, 2022 |
| Property Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Document Number | 0000010033 |
| Instrument Date | Jan 12, 2022 |
| Instrument | 2022-010033 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Title Company | AMROCK LLC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 18, 2022 |
| Property Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Document Number | 0000010031 |
| Instrument Date | Jan 12, 2022 |
| Instrument | 2022-010031 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | AMROCK INC, AMROCK LLC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 818 SHELL AVE, MARTINEZ, CA 94553-3325 |
| Document Number | 0000010032 |
|---|---|
| Date | Jan 18, 2022 |
| Instrument | 2022-010032 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 02, 2052 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Martinez Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $263,814 (+2%) Land $140,784 Building $123,030 | |
| 2025 | $4,168.00 (+7.62%) Homeowner's exemption | $258,642 (+4.04%) Land $138,024 Building $120,618 |
| 2023 | $3,873.00 (+3.28%) Homeowner's exemption | $248,600 Land $132,665 Building $115,935 |
| 2022 | $3,750.00 |
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