Contra Costa County property record for 4516 Knollpark Cir, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,813 sqft · built 1989 |
| Lot Size | 0.101 acres (4,394 sqft) |
| Owner | Company Name on Record |
| Last Sale | $165,000 (Nov 1995) |
| Tax Bill | $3,673 (2025) |
| Deeds & Mortgages | Aug 2020 Mortgage May 2017 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-050-074-6 |
| Primary APN | 056-050-074-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,813 sqft Living Area |
| 1st Floor Area | 918 sqft |
| 2nd Floor Area | 895 sqft |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Lot Area | 4,394 sqft (0.101 acres) |
| Garage Type | Attached |
| Garage Area | 503 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4516 KNOLLPARK CIR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-7706 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T6975 L128 |
| Legal Subdivision | SUBDIVISION 6975 |
| Legal Tract | 6975 |
| Legal Lot Number | 128 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 355110 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 4516 KNOLLPARK CIR, ANTIOCH, CA 94531-7706 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Aug 26, 2020 | Deed of Trust, Mortgage · Conventional Mortgage MILLENNIAL HM LNDG INC |
| May 1, 2017 | Quit Claim Deed, Transfer · Conventional Mortgage ETHOS LNDG |
| May 1, 2017 | Quit Claim Deed, Transfer CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 1, 1995 · Amount on Record |
| Deed Sale | Nov 1, 1995 · Amount on Record |
| Deed Document Number | 1995190587 |
| Last Transfer Date | Apr 20, 2017 |
| Transfer Doc | 0000074719 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4516 KNOLLPARK CIR, ANTIOCH, CA 94531-7706 |
| Document Number | 0000249548 |
| Instrument Date | Aug 26, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Nov 5, 2020 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 4516 KNOLLPARK CIR ANTIOCH CA 945317706, ANTIOCH, CA 94531-7706 |
| Document Number | 0000249548 |
|---|---|
| Date | Oct 26, 2020 |
| Instrument | 249548 |
| Name | MILLENNIAL HM LNDG INC |
|---|---|
| Address | CHATSWORTH, CA 91311 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Oct 25, 2050 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 1, 2017 |
| Property Address | 4516 KNOLLPARK CIR, ANTIOCH, CA 94531-7706 |
| Document Number | 0000074719 |
| Instrument Date | Apr 20, 2017 |
| Instrument | 74719 |
| Transaction Type | Transfer |
| Record Updated | May 9, 2017 |
| Title Company | CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4516 KNOLLPARK CIR ANTIOCH CA 945317706, ANTIOCH, CA 94531-7706 |
| Document Number | 74720 |
|---|---|
| Date | May 1, 2017 |
| Instrument | 74720 |
| Name | ETHOS LNDG |
|---|---|
| Address | PITTSBURGH, PA 15212 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 30, 2047 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 1, 2017 |
| Property Address | 4516 KNOLLPARK CIR, ANTIOCH, CA 94531-7706 |
| Document Number | 0000074721 |
| Instrument Date | Apr 20, 2017 |
| Instrument | 74721 |
| Transaction Type | Transfer |
| Record Updated | May 9, 2017 |
| Title Company | CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 4516 KNOLLPARK CIR ANTIOCH CA 945317706, ANTIOCH, CA 94531-7706 |
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 | $282,946 (+2%) Land $59,289 Building $223,657 | |
| 2025 | $3,673.00 (+5.58%) Homeowner's exemption | $277,399 (+4.04%) Land $58,127 Building $219,272 |
| 2023 | $3,479.00 (+1.52%) Homeowner's exemption | $266,629 Land $55,871 Building $210,758 |
| 2022 | $3,427.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| 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 797 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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