Contra Costa County property record for 103 Brookside Dr, Antioch, CA 94509 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,420 sqft · built 1973 |
| Lot Size | 0.234 acres (10,208 sqft) |
| Owner | Individual Name on File |
| Last Sale | $520,000 (Dec 2022) |
| Tax Bill | $6,547 (2025) |
| Deeds & Mortgages | Dec 2022 Mortgage Dec 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 068-332-017 |
| Primary APN | 068-332-017 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,420 sqft Living Area |
| Gross Area | 1,857 sqft |
| 1st Floor Area | 1,420 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 1982 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 10,208 sqft (0.234 acres) |
| Garage Type | Attached |
| Garage Area | 437 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 103 BROOKSIDE DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6105 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4335 LOT 17 EX 1/2 MR |
| Legal Subdivision | SUBDIVISION 4335 |
| Legal Tract | 4335 |
| Legal Lot Number | 17 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 4 |
| Census Block | 4008 |
| Census Tract | 308001 |
Source: Contra Costa County records · APN 068-332-017
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 | Individual Name on File |
|---|---|
| Mailing Address | 103 BROOKSIDE DR, ANTIOCH, CA 94509-6105 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 20, 2022 | Intrafamily Transfer, Transfer · Conventional Mortgage PLATINUM HOME MORTGAGE CORP |
| Dec 20, 2022 | Grant Deed, Transfer · Conventional Mortgage PLATINUM HOME MORTGAGE CORP |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 20, 2022 · Amount on Record |
| Deed Sale | Dec 20, 2022 · Amount on Record |
| Prior Sale | Mar 30, 2010 · Amount on Record |
| Deed Document Number | 2022186211 |
| Prior Transfer Date | Dec 09, 2022 |
| Prior Transfer Doc | 0000186212 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 20, 2022 |
| Property Address | 103 BROOKSIDE DR, ANTIOCH, CA 94509-6105 |
| Document Number | 0000186212 |
| Map Reference | MB 156 PG 22 |
| Instrument Date | Dec 09, 2022 |
| Instrument | 2022-186212 |
| Transaction Type | Transfer |
| Record Updated | Dec 29, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 103 BROOKSIDE DR, ANTIOCH, CA 94509-6105 |
| Document Number | 0000186214 |
|---|---|
| Date | Dec 20, 2022 |
| Instrument | 2022-186214 |
| Name | PLATINUM HOME MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 01, 2053 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 20, 2022 |
| Property Address | 103 BROOKSIDE DR, ANTIOCH, CA 94509-6105 |
| Document Number | 0000186211 |
| Map Reference | MB 156 PG 22 |
| Instrument Date | Dec 07, 2022 |
| Instrument | 2022-186211 |
| Transaction Type | Transfer |
| Record Updated | Dec 29, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| 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 |
|---|---|
| Address | 103 BROOKSIDE DR, ANTIOCH, CA 94509-6105 |
| Document Number | 0000186213 |
|---|---|
| Date | Dec 20, 2022 |
| Instrument | 2022-186213 |
| Name | PLATINUM HOME MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 01, 2053 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 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 | $551,827 (+2%) Land $297,138 Building $254,689 | |
| 2025 | $6,547.00 (+5.07%) Homeowner's exemption | $541,008 (+4.04%) Land $291,312 Building $249,696 |
| 2023 | $6,231.00 (+118.55%) Homeowner's exemption | $520,000 Land $280,000 Building $240,000 |
| 2022 | $2,851.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 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 |
| 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; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 489 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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