Contra Costa County property record for 522 Mount Davidson Ct, Clayton, CA 94517
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,325 sqft · built 1978 |
| Lot Size | 0.231 acres (10,070 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,225,000 (Aug 2025) |
| Tax Bill | $12,597 (2025) |
| Deeds & Mortgages | Sep 2021 Transfer Dec 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 119-490-007 |
| Primary APN | 119-490-007 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 11 Rooms |
| Stories | 1 Story |
| Building Area | 2,325 sqft Living Area |
| Gross Area | 3,031 sqft |
| 1st Floor Area | 2,325 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Mediterranean |
| Exterior Material | Stucco |
| Roof Material | Tile |
| Lot Area | 10,070 sqft (0.231 acres) |
| Garage Type | Attached |
| Garage Area | 706 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 522 MT DAVIDSON CT |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1602 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T04019 L0007 B EX MR |
| Legal Subdivision | SUBDIVISION 4019 |
| Legal Tract | 04019 |
| Legal Lot Number | 7 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3011 |
| Census Tract | 355306 |
Source: Contra Costa County records · APN 119-490-007
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 522 MT DAVIDSON CT, CLAYTON, CA 94517-1602 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Sep 01, 2021 | Intrafamily Transfer, Transfer |
| Dec 30, 2020 | Grant Deed, Transfer · VA Mortgage GUARANTEED RATE AFFINITY LLC |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 27, 2025 · Amount on Record |
| Deed Sale | Aug 27, 2025 · Amount on Record |
| Prior Sale | Dec 30, 2020 · Amount on Record |
| Deed Document Number | 202587502 |
| Prior Transfer Date | Aug 10, 2021 |
| Prior Transfer Doc | 0000245094 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 01, 2021 |
| Property Address | 522 MT DAVIDSON CT, CLAYTON, CA 94517-1602 |
| Document Number | 0000245094 |
| Map Reference | MB 194 PG 50 |
| Instrument Date | Aug 10, 2021 |
| Instrument | 2021-245094 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Living Trust |
| Address | 522 MT DAVIDSON CT, CLAYTON, CA 94517-1602 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 30, 2020 |
| Property Address | 522 MT DAVIDSON CT, CLAYTON, CA 94517-1602 |
| Document Number | 0000329346 |
| Map Reference | MB 194 PG 50 |
| Instrument Date | Dec 12, 2020 |
| Instrument | 2020-329346 |
| Transaction Type | Transfer |
| Record Updated | Jul 27, 2021 |
| Title Company | CORNERSTONE 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 |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 522 MT DAVIDSON CT, CLAYTON, CA 94517-1602 |
| Document Number | 0000329347 |
|---|---|
| Date | Dec 30, 2020 |
| Instrument | 2020-329347 |
| Name | GUARANTEED RATE AFFINITY LLC |
|---|---|
| Type | Mortgage Company |
| Type | VA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 01, 2051 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Clayton City |
| Unified School District | Mount Diablo 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 | $1,155,880 (+12.64%) Land $580,850 Building $575,030 | |
| 2025 | $12,597.00 (+4.33%) Homeowner's exemption | $1,026,143 (+4.04%) Land $487,093 Building $539,050 |
| 2023 | $12,074.00 (+1.23%) Homeowner's exemption | $986,299 Land $468,180 Building $518,119 |
| 2022 | $11,927.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 in force |
| Wildfire Risk | High above 86% of the US · above 66% of California |
|---|---|
| Wildfire Likelihood | 0.8% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 86 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CONTRA COSTA WATER DISTRICT serves 210,500 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures