Contra Costa County property record for 20 Mount Hamilton Ct, Clayton, CA 94517
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,919 sqft · built 1972 |
| Lot Size | 0.229 acres (9,964 sqft) |
| Owner | Company Name on Record |
| Last Sale | $795,000 (Oct 2018) |
| Tax Bill | $11,062 (2025) |
| Deeds & Mortgages | Sep 2023 Transfer Apr 2021 Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 119-171-009-2 |
| Primary APN | 119-171-009-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 1,919 sqft Living Area |
| 1st Floor Area | 1,919 sqft |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | Cluster |
| Lot Area | 9,964 sqft (0.229 acres) |
| Garage Type | Attached |
| Garage Area | 523 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 20 MT HAMILTON CT |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1506 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4012 LOT 49 EX MR |
| Legal Subdivision | SUBDIVISION 4012 |
| Legal Tract | 4012 |
| Legal Lot Number | 49 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4004 |
| Census Tract | 355306 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 20 MT HAMILTON CT, CLAYTON, CA 94517-1506 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Sep 15, 2023 | Intrafamily Transfer, Transfer |
| Apr 26, 2021 | Deed of Trust, Mortgage · Conventional Mortgage CF BANK |
| Jul 26, 2019 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA |
| Oct 26, 2018 | Grant Deed, Transfer · Conventional Mortgage BANK OF AMERICA |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 26, 2018 · Amount on Record |
| Deed Sale | Oct 26, 2018 · Amount on Record |
| Deed Document Number | 2018174699 |
| Prior Transfer Date | Jun 20, 2013 |
| Prior Transfer Doc | 0000175963 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 15, 2023 |
| Property Address | 20 MT HAMILTON CT, CLAYTON, CA 94517-1506 |
| Document Number | 0000089355 |
| Map Reference | MB 137 PG 15 |
| Instrument Date | Aug 21, 2023 |
| Instrument | 2023-089355 |
| Transaction Type | Transfer |
| Record Updated | Sep 26, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 20 MT HAMILTON CT, CLAYTON, CA 94517-1506 |
| Investor | Possibly a Property Investor |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 20 MT HAMILTON CT, CLAYTON, CA 94517-1506 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | SOLIDIFI TITLE & CLOSING |
| Name | Verified Name |
|---|---|
| Address | 20 MT HAMILTON CT, CLAYTON, CA 94517-1506 |
| Document Number | 0000124489 |
|---|---|
| Date | Apr 26, 2021 |
| Instrument | 2021-124489 |
| Name | CF BANK |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43085 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 241 Months |
| Due | May 1, 2041 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 20 MT HAMILTON CT, CLAYTON, CA 94517-1506 |
| Document Number | 0000123114 |
| Instrument Date | Jul 26, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Aug 14, 2019 |
| Title Company | TITLE SERVICE AND LIAISON COMPANIES, SIMPLIFILE LC E-RECORDING |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 20 MT HAMILTON CT CLAYTON CA 945171506, CLAYTON, CA 94517-1506 |
| Document Number | 0000123114 |
|---|---|
| Date | Aug 6, 2019 |
| Instrument | 123114 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Aug 5, 2049 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 26, 2018 |
| Property Address | 20 MT HAMILTON CT, CLAYTON, CA 94517-1506 |
| Document Number | 0000174699 |
| Instrument Date | Oct 18, 2018 |
| Instrument | 174699 |
| Transaction Type | Transfer |
| Record Updated | Nov 16, 2018 |
| Title Company | OLD REPUBLIC TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $874.50 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 20 MT HAMILTON CT CLAYTON CA 945171506, CLAYTON, CA 94517-1506 |
| Document Number | 174700 |
|---|---|
| Date | Oct 26, 2018 |
| Instrument | 174700 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Oct 25, 2048 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Clayton City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $904,569 (+2%) Land $512,020 Building $392,549 | |
| 2025 | $11,062.00 (+4.41%) Homeowner's exemption | $886,833 (+4.04%) Land $501,981 Building $384,852 |
| 2023 | $10,595.00 (+1.28%) Homeowner's exemption | $852,398 Land $482,490 Building $369,908 |
| 2022 | $10,461.00 |
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 | High above 76% of the US · above 53% of California |
|---|---|
| Wildfire Likelihood | 0.4% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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 420 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 |
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