Contra Costa County property record for 1871 Mount Conness Ct, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,683 sqft · built 1999 |
| Lot Size | 0.181 acres (7,861 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $790,000 (Nov 2023) |
| Tax Bill | $9,055 (2025) |
| Deeds & Mortgages | Nov 2023 Sale & Mortgage Jun 2020 Line of Credit + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-480-008-6 |
| Primary APN | 055-480-008-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,683 sqft Living Area |
| 1st Floor Area | 1,416 sqft |
| 2nd Floor Area | 1,267 sqft |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Lot Area | 7,861 sqft (0.181 acres) |
| Garage Type | Attached |
| Garage Area | 650 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 1871 MOUNT CONNESS CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-7494 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8181 L488 |
| Legal Subdivision | SUBDIVISION 8181 |
| Legal Tract | 8181 |
| Legal Lot Number | 488 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 355120 |
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 | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Nov 16, 2023 | Grant Deed, Transfer · VA Mortgage MORTGAGE RESEARCH CENTER LLC |
| Jun 19, 2020 | Deed of Trust, Mortgage · Line of Credit THIRD FSLA OF CLEVELAND |
| Apr 30, 2020 | Deed of Trust, Mortgage · Conventional Mortgage KWIK MORTGAGE CORP |
| May 9, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Jun 2, 2017 | Intrafamily Transfer, Transfer · Conventional Mortgage NEW PENN FINANCIAL LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 16, 2023 · Amount on Record |
| Deed Sale | Nov 16, 2023 · Amount on Record |
| Prior Sale | Jul 15, 2008 · Amount on Record |
| Deed Document Number | 2023123352 |
| Prior Transfer Date | May 1, 2017 |
| Prior Transfer Doc | 0000098092 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 16, 2023 |
| Property Address | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Document Number | 0000123352 |
| Map Reference | MB 404 PG 41 |
| Instrument Date | Nov 14, 2023 |
| Instrument | 2023-123352 |
| Transaction Type | Transfer |
| Record Updated | Dec 4, 2023 |
| Title Company | OLD REPUBLIC TITLE, 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 | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Document Number | 0000123353 |
|---|---|
| Date | Nov 16, 2023 |
| Instrument | 2023-123353 |
| Name | MORTGAGE RESEARCH CENTER LLC |
|---|---|
| Type | Mortgage Company |
| Type | VA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 1, 2053 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | TITLE365 |
| Name | Verified Name |
|---|
| Document Number | 0000119429 |
|---|---|
| Date | Jun 19, 2020 |
| Instrument | 2020-119429 |
| Name | THIRD FSLA OF CLEVELAND |
|---|---|
| Type | Bank |
| Address | CLEVELAND, OH 44105 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 12, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | TITLE365 |
| Name | Verified Name |
|---|
| Document Number | 0000082219 |
|---|---|
| Date | Apr 30, 2020 |
| Instrument | 2020-082219 |
| Name | KWIK MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | PARSIPPANY, NJ 07054 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | May 1, 2035 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 9, 2017 |
| Property Address | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Document Number | 0000080349 |
| Instrument Date | May 1, 2017 |
| Instrument | 80349 |
| Transaction Type | Transfer |
| Record Updated | May 23, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 1871 MOUNT CONNESS CT ANTIOCH CA 945317494, ANTIOCH, CA 94531-7494 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 2, 2017 |
| Property Address | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Document Number | 0000098092 |
| Map Reference | MB404 PG41 |
| Instrument Date | May 1, 2017 |
| Instrument | 2017-098092 |
| Transaction Type | Transfer |
| Record Updated | Jul 27, 2021 |
| Title Company | WFG LENDER SERVICES |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1871 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494 |
| Document Number | 0000098093 |
|---|---|
| Date | Jun 2, 2017 |
| Instrument | 2017-098093 |
| Name | NEW PENN FINANCIAL LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 1, 2047 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $821,916 (+2%) Land $249,696 Building $572,220 | |
| 2025 | $9,055.00 (+70.21%) Homeowner's exemption | $805,800 (+74.06%) Land $244,800 Building $561,000 |
| 2023 | $5,320.00 (+1.58%) Homeowner's exemption | $462,936 Land $123,768 Building $339,168 |
| 2022 | $5,237.00 |
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
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 611 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 |
May also be available: T-Mobile, Unwired.
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