Contra Costa County property record for 4105 Spaulding St, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,226 sqft · built 1990 |
| Lot Size | 0.156 acres (6,780 sqft) |
| Owner | Individual Name on File |
| Last Sale | $136,500 (Apr 2021) |
| Tax Bill | $6,313 (2025) |
| Deeds & Mortgages | Apr 2021 Transfer Apr 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-303-009-6 |
| Primary APN | 052-303-009-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,226 sqft Living Area |
| 1st Floor Area | 1,156 sqft |
| 2nd Floor Area | 1,070 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Roof Material | Tile |
| Lot Area | 6,780 sqft (0.156 acres) |
| Garage Type | Attached |
| Garage Area | 513 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4105 SPAULDING ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8218 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A-2 |
| Legal Description | T6855 L125 |
| Legal Subdivision | VIERA RANCH I SUB 6855 |
| Legal Tract | 6855 |
| Legal Lot Number | 125 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 308002 |
Source: Contra Costa County records · APN 052-303-009-6
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 | Individual Name on File |
|---|---|
| Mailing Address | 182 VALMAR TER, SAN FRANCISCO, CA 94112-2158 |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Apr 16, 2021 | Intrafamily Transfer, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Apr 16, 2021 | Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 16, 2021 · Amount on Record |
| Deed Sale | Apr 16, 2021 · Amount on Record |
| Prior Sale | Aug 29, 2002 · Amount on Record |
| Deed Document Number | 2021115046 |
| Prior Transfer Date | Apr 13, 2021 |
| Prior Transfer Doc | 0000115047 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 16, 2021 |
| Property Address | 4105 SPAULDING ST, ANTIOCH, CA 94531-8218 |
| Document Number | 0000115047 |
| Map Reference | MB 331 PG 8 |
| Instrument Date | Apr 13, 2021 |
| Instrument | 2021-115047 |
| Transaction Type | Transfer |
| Record Updated | Aug 01, 2023 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 182 VALMAR TER, SAN FRANCISCO, CA 94112-2158 |
| Investor | Possibly a Property Investor |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 16, 2021 |
| Property Address | 4105 SPAULDING ST, ANTIOCH, CA 94531-8218 |
| Document Number | 0000115046 |
| Map Reference | MB 331 PG 8 |
| Instrument Date | Apr 13, 2021 |
| Instrument | 2021-115046 |
| Transaction Type | Transfer |
| Record Updated | Aug 01, 2023 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 182 VALMAR TER, SAN FRANCISCO, CA 94112-2158 |
| Investor | Possibly a Property Investor |
| Document Number | 0000115048 |
|---|---|
| Date | Apr 16, 2021 |
| Instrument | 2021-115048 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2051 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch 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 | $548,248 (+2%) Land $177,851 Building $370,397 | |
| 2025 | $6,313.00 (+6.12%) | $537,499 (+4.04%) Land $174,364 Building $363,135 |
| 2023 | $5,949.00 (+1.59%) | $516,630 Land $167,595 Building $349,035 |
| 2022 | $5,856.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Low lower than 97% of the US · lower than 97.8% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: Verizon.
Based on FCC filings for 204 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF ANTIOCH serves 116,781 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| Lead | Under 1 ppb (2022–2024) 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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