Contra Costa County property record for 621 Donna Dr, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 959 sqft · built 1953 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $430,000 (Dec 2020) |
| Tax Bill | $6,527 (2025) |
| Deeds & Mortgages | Apr 2026 Line of Credit Dec 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 380-111-004-4 |
| Primary APN | 380-111-004-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 959 sqft Living Area |
| 1st Floor Area | 959 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1965 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 246 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 621 DONNA DR |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1422 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | VINE HILL MANOR LOT 14 |
| Legal Subdivision | VINE HILL MANOR |
| Legal Lot Number | 14 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1015 |
| 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 | Individual Name on Record |
|---|---|
| Mailing Address | 621 DONNA DR, MARTINEZ, CA 94553-1422 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Man |
| Date | Document |
|---|---|
| Apr 1, 2026 | Grant Deed, Transfer · Line of Credit STAR ONE CREDIT UNION |
| Dec 30, 2020 | Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE INC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 30, 2020 · Amount on Record |
| Deed Sale | Dec 30, 2020 · Amount on Record |
| Prior Sale | Dec 31, 2013 · Amount on Record |
| Deed Document Number | 2020328768 |
| Prior Transfer Date | Dec 16, 2004 |
| Prior Transfer Doc | 0000491524 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 1, 2026 |
| Property Address | 621 DONNA DR, MARTINEZ, CA 94553-1422 |
| Document Number | 0000032617 |
| Instrument Date | Mar 9, 2026 |
| Instrument | 202632617 |
| Transaction Type | Transfer |
| Record Updated | Jul 13, 2026 |
| Title Company | ATLAS TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 621 DONNA DR, MARTINEZ, CA 94553-1422 |
| Document Number | 0000032618, |
|---|---|
| Date | Apr 1, 2026 |
| Instrument | 202632618 |
| Name | STAR ONE CREDIT UNION |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | May 1, 2041 |
| Rate | 5.35% |
|---|---|
| Max Rate | -1% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 30, 2020 |
| Property Address | 621 DONNA DR, MARTINEZ, CA 94553-1422 |
| Document Number | 0000328768 |
| Map Reference | MB 50 PG 14 |
| Instrument Date | Dec 27, 2020 |
| Instrument | 2020-328768 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | 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 |
|---|---|
| Address | 632 DONNA DR, MARTINEZ, CA 94553-1421 |
| Document Number | 0000328769 |
|---|---|
| Date | Dec 30, 2020 |
| Instrument | 2020-328769 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 1, 2051 |
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 | $474,751 (+2%) Land $353,304 Building $121,447 | |
| 2025 | $6,527.00 (+7.25%) | $465,443 (+4.04%) Land $346,377 Building $119,066 |
| 2023 | $6,086.00 (+2.75%) | $447,372 Land $332,928 Building $114,444 |
| 2022 | $5,923.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 1998 · rainfall accumulation |
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 | Low lower than 63% of the US · lower than 78% of California |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | Direct burnable vegetation |
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 20 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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