Contra Costa County property record for 522 Mount Dell Dr, Clayton, CA 94517
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 2 ba · 1,658 sqft · built 1975 |
| Lot Size | 0.069 acres (3,016 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $595,000 (Jan 2019) |
| Tax Bill | $8,639 (2025) |
| Deeds & Mortgages | Mar 2021 Mortgage Jan 2019 Sale & Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 119-301-002 |
| Primary APN | 119-301-002 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,658 sqft Living Area |
| 1st Floor Area | 1,658 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1976 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 3,016 sqft (0.069 acres) |
| Garage Type | Attached |
| Garage Area | 436 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 522 MT DELL DR |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1503 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | TRACT 4504 LOT 2 |
| Legal Subdivision | SUBDIVISION 4504 |
| Legal Tract | 4504 |
| Legal Lot Number | 2 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 355306 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 522 MT DELL DR, CLAYTON, CA 94517-1503 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants in Common |
| Date | Document |
|---|---|
| Mar 29, 2021 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Jan 15, 2019 | Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA |
| Apr 11, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Apr 11, 2018 | Affidavit of Death, Transfer ATTORNEY ONLY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 15, 2019 · Amount on Record |
| Deed Sale | Jan 15, 2019 · Amount on Record |
| Deed Document Number | 20195746 |
| Prior Transfer Date | Mar 16, 2018 |
| Prior Transfer Doc | 0000055786 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 522 MT DELL DR, CLAYTON, CA 94517-1503 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | STEWART TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 101 N PHILLIPS AVE, SIOUX FALLS, SD 57104-6738 |
| Document Number | 0000093743 |
|---|---|
| Date | Mar 29, 2021 |
| Instrument | 2021-093743 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 1, 2051 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 15, 2019 |
| Property Address | 522 MT DELL DR, CLAYTON, CA 94517-1503 |
| Document Number | 0000005746 |
| Map Reference | MB 162 PG 21 |
| Instrument Date | Jan 10, 2019 |
| Instrument | 2019-005746 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | LAWYERS 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 |
|---|---|
| Relationship | Tenants in Common |
| Address | 522 MT DELL DR, CLAYTON, CA 94517-1503 |
| Document Number | 0000005747 |
|---|---|
| Date | Jan 15, 2019 |
| Instrument | 2019-005747 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 1, 2049 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 11, 2018 |
| Property Address | 522 MT DELL DR, CLAYTON, CA 94517-1503 |
| Document Number | 0000055786 |
| Instrument Date | Mar 16, 2018 |
| Instrument | 55786 |
| Transaction Type | Transfer |
| Record Updated | Apr 16, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 522 MT DELL DR CLAYTON CA 945171503, CLAYTON, CA 94517-1503 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 11, 2018 |
| Property Address | 522 MT DELL DR, CLAYTON, CA 94517-1503 |
| Document Number | 0000055785 |
| Instrument Date | Mar 16, 2018 |
| Instrument | 55785 |
| Transaction Type | Transfer |
| Record Updated | Apr 16, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 522 MT DELL DR CLAYTON CA 945171503, CLAYTON, CA 94517-1503 |
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 | $677,001 (+2%) Land $325,415 Building $351,586 | |
| 2025 | $8,639.00 (+4.55%) | $663,728 (+4.04%) Land $319,035 Building $344,693 |
| 2023 | $8,263.00 (+1.4%) | $637,957 Land $306,648 Building $331,309 |
| 2022 | $8,149.00 |
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 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 in force |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 88% of the US · above 69% of California |
|---|---|
| Wildfire Likelihood | 1% annual chance |
| Exposure | Direct burnable vegetation |
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 107 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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