Contra Costa County property record for 5646 Rosscommon Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,663 sqft · built 2005 |
| Lot Size | 0.203 acres (8,832 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $560,000 (Aug 2015) |
| Tax Bill | $8,186 (2025) |
| Deeds & Mortgages | Mar 2023 Mortgage Dec 2017 Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-400-023 |
| Primary APN | 056-400-023 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,663 sqft Living Area |
| 1st Floor Area | 1,681 sqft |
| 2nd Floor Area | 1,982 sqft |
| Year Built | Built 2005 |
|---|---|
| Effective Year Built | Effective 2006 |
| Lot Area | 8,832 sqft (0.203 acres) |
| Garage Type | Attached |
| Garage Area | 748 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 5646 ROSSCOMMON WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8646 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8886 L204 |
| Legal Subdivision | SUBDIVISION 8886 |
| Legal Tract | 8886 |
| Legal Lot Number | 204 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 302009 |
5646 Rosscommon Way is owned and occupied by two individuals who bought it in August 2015.
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 5646 ROSSCOMMON WAY, ANTIOCH, CA 94531-8646 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Mar 9, 2023 | Deed of Trust, Mortgage PACIFIC SERVICE CU |
| Dec 29, 2017 | Deed of Trust, Mortgage · FHA Mortgage MOUNTAIN WEST FINANCIAL INC |
| Oct 16, 2020 | Deed of Trust, Mortgage · Conventional Mortgage MOUNTAIN WEST FINANCIAL INC |
| Sep 9, 2019 | Deed of Trust, Mortgage · FHA Mortgage MR COOPER |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 17, 2015 · Amount on File |
| Deed Sale | Aug 17, 2015 · Amount on File |
| Prior Sale | Jul 8, 2014 · Amount on File |
| Deed Document Number | 2015170221 |
| Prior Transfer Date | Apr 17, 2006 |
| Prior Transfer Doc | 0000119528 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5646 ROSSCOMMON WAY, ANTIOCH, CA 94531-8646 |
| Transaction Type | Mortgage |
| Record Updated | Mar 20, 2023 |
| Title Company | CHICAGO TITLE PIRT |
| Name | Verified Name |
|---|---|
| Address | 5646 ROSSCOMMON WAY, ANTIOCH, CA 94531-8646 |
| Document Number | 0000021903 |
|---|---|
| Date | Mar 9, 2023 |
| Instrument | 2023-021903 |
| Name | PACIFIC SERVICE CU |
|---|---|
| Type | Credit Union |
| Address | WALNUT CREEK, CA 94596 |
| Amount | Amount on Record |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5646 ROSSCOMMON WAY, ANTIOCH, CA 94531-8646 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | PACIFIC COAST TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000245302 |
|---|---|
| Date | Dec 29, 2017 |
| Instrument | 2017-245302 |
| Name | MOUNTAIN WEST FINANCIAL INC |
|---|---|
| Type | Funding / Finance Company |
| Address | REDLANDS, CA 92374 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jan 1, 2048 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5646 ROSSCOMMON WAY, ANTIOCH, CA 94531-8646 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | PACIFIC COAST TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 5646 ROSSCOMMON WAY, ANTIOCH, CA 94531-8646 |
| Document Number | 0000239961 |
|---|---|
| Date | Oct 16, 2020 |
| Instrument | 2020-239961 |
| Name | MOUNTAIN WEST FINANCIAL INC |
|---|---|
| Type | Mortgage Company |
| Address | REDLANDS, CA 92374 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5646 ROSSCOMMON WAY, ANTIOCH, CA 94531-8646 |
| Document Number | 0000152288 |
| Instrument Date | Sep 9, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Sep 25, 2019 |
| Title Company | TITLE SERVICE AND LIAISON COMPANIES, SIMPLIFILE LC E-RECORDING |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 5646 ROSSCOMMON WAY ANTIOCH CA 945318646, ANTIOCH, CA 94531-8646 |
| Document Number | 0000152288 |
|---|---|
| Date | Sep 16, 2019 |
| Instrument | 152288 |
| Name | MR COOPER |
|---|---|
| Address | COPPELL, TX 75019 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Sep 15, 2049 |
The 2025 property tax bill for 5646 Rosscommon Way was $8,186.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Elementary School District | Brentwood Union Elementary School District (KG - 08) |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $676,175 (+2%) Land $90,556 Building $585,619 | |
| 2025 | $8,186.00 | $662,918 Land $88,781 Building $574,137 |
| 2023 | $7,867.00 (+1.42%) | $637,179 Land $85,335 Building $551,844 |
| 2022 | $7,757.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 5646 Rosscommon Way in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 5646 Rosscommon Way has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| 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, 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 416 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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