Contra Costa County property record for 4620 Blum Rd, Martinez, CA 94553 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,803 sqft · built 1952 |
| Lot Size | 0.26 acres (11,325 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $849,000 (Jul 2022) |
| Tax Bill | $11,370 (2025) |
| Deeds & Mortgages | Feb 2026 Transfer Oct 2019 Line of Credit + 4 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 159-180-010-5 |
| Primary APN | 159-180-010-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,803 sqft Living Area |
| 1st Floor Area | 1,803 sqft |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1985 |
| Lot Area | 11,325 sqft (0.26 acres) |
| Garage Type | Attached |
| Garage Area | 520 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 4620 BLUM RD |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3644 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | POR RO LAS JUNTAS |
| Legal Subdivision | LAS JUNTAS RHO |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 320004 |
Source: Contra Costa County records · APN 159-180-010-5
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Trust, Revocable Trust |
| Date | Document |
|---|---|
| Feb 09, 2026 | Intrafamily Transfer, Transfer |
| Oct 31, 2019 | Deed of Trust, Mortgage · Line of Credit BBVA USA |
| Jul 07, 2022 | Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Dec 28, 2021 | Intrafamily Transfer, Transfer |
| Jul 29, 2019 | Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| May 17, 2018 | Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 07, 2022 · Amount on Record |
| Deed Sale | Jul 07, 2022 · Amount on Record |
| Prior Sale | Aug 17, 2007 · Amount on Record |
| Deed Document Number | 2022109481 |
| Prior Transfer Date | Dec 27, 2021 |
| Prior Transfer Doc | 0000347791 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Feb 09, 2026 |
| Property Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Number | 0000012716 |
| Instrument Date | Feb 09, 2026 |
| Instrument | 2026- 012716 |
| Transaction Type | Transfer |
| Record Updated | Feb 18, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000193518 |
|---|---|
| Date | Oct 31, 2019 |
| Instrument | 2019-193518 |
| Name | BBVA USA |
|---|---|
| Type | Bank |
| Address | WALNUT CREEK, CA 94597 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Oct 23, 2044 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 07, 2022 |
| Property Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Number | 0000109481 |
| Instrument Date | Jun 28, 2022 |
| Instrument | 2022-109481 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Investor | Possibly a Property Investor |
| Document Number | 0000109482 |
|---|---|
| Date | Jul 07, 2022 |
| Instrument | 2022-109482 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2052 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 28, 2021 |
| Property Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Number | 0000347791 |
| Instrument Date | Dec 27, 2021 |
| Instrument | 2021-347791 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 29, 2019 |
| Property Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Number | 0000117624 |
| Instrument Date | Jul 20, 2019 |
| Instrument | 2019-117624 |
| Transaction Type | Transfer |
| Record Updated | Jul 27, 2021 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Number | 0000117625 |
|---|---|
| Date | Jul 29, 2019 |
| Instrument | 2019-117625 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2049 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 17, 2018 |
| Property Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Number | 0000077807 |
| Instrument Date | May 10, 2018 |
| Instrument | 2018-077807 |
| Transaction Type | Transfer |
| Record Updated | Jul 27, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4620 BLUM RD, MARTINEZ, CA 94553-3644 |
| Document Number | 0000077808 |
|---|---|
| Date | May 17, 2018 |
| Instrument | 2018-077808 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 01, 2048 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| 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 | $900,964 (+2%) Land $636,724 Building $264,240 | |
| 2025 | $11,370.00 (+6.93%) | $883,299 (+4.04%) Land $624,240 Building $259,059 |
| 2023 | $10,633.00 (+39.16%) | $849,000 Land $600,000 Building $249,000 |
| 2022 | $7,641.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133200041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 1 (2017) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 244 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Fiber | 1,500 / 1,500 |
| Unwired | Fixed Wireless | 300 / 25 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: AT&T, Radiate Holdings, Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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