Contra Costa County property record for 308 Mount Palomar Pl, Clayton, CA 94517
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,691 sqft · built 1976 |
| Lot Size | 0.24 acres (10,450 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,120,000 (Nov 2021) |
| Tax Bill | $14,390 (2025) |
| Deeds & Mortgages | Nov 2021 Sale & Mortgage Nov 2018 Loan Modification + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 119-412-038 |
| Primary APN | 119-412-038 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,691 sqft Living Area |
| Gross Area | 3,328 sqft |
| 1st Floor Area | 1,499 sqft |
| 2nd Floor Area | 1,192 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1977 |
| Architectural Style | Cluster |
| Lot Area | 10,450 sqft (0.24 acres) |
| Garage Type | Attached |
| Garage Area | 637 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 308 MT PALOMAR PL |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-1640 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4016 POR LOT 28 EX MR |
| Legal Subdivision | SUBDIVISION 4016 |
| Legal Tract | 4016 |
| Legal Lot Number | 28 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 355306 |
308 Mount Palomar Pl is owned and occupied by two individuals who bought it in November 2021.
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 308 MT PALOMAR PL, CLAYTON, CA 94517-1640 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Nov 30, 2021 | Grant Deed, Transfer · Conventional Mortgage ALLY BANK |
| Nov 29, 2018 | Loan Modification, Mortgage ONE REPUBLIC TITLE COMPANY, ONE REPUBLIC TITLE CO |
| Sep 12, 2017 | Deed of Trust, Mortgage · Conventional Mortgage KEYPOINT CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 30, 2021 · Amount on File |
| Deed Sale | Nov 30, 2021 · Amount on File |
| Prior Sale | Jan 23, 2014 · Amount on File |
| Deed Document Number | 2021327581 |
| Prior Transfer Date | Jan 16, 2014 |
| Prior Transfer Doc | 0000011607 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 30, 2021 |
| Property Address | 308 MT PALOMAR PL, CLAYTON, CA 94517-1640 |
| Document Number | 0000327581 |
| Map Reference | MB 183 PG 11 |
| Instrument Date | Nov 19, 2021 |
| Instrument | 2021-327581 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| 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 | Community Property with Right of Survivorship |
| Address | 308 MT PALOMAR PL, CLAYTON, CA 94517-1640 |
| Document Number | 0000327582 |
|---|---|
| Date | Nov 30, 2021 |
| Instrument | 2021-327582 |
| Name | ALLY BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2051 |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 308 MT PALOMAR PL, CLAYTON, CA 94517-1640 |
| Document Number | 0000200958 |
| Instrument Date | Nov 29, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Dec 27, 2018 |
| Title Company | ONE REPUBLIC TITLE COMPANY, ONE REPUBLIC TITLE CO |
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 3255 ASPARA DR CLAYTON CA 945179717, CLAYTON, CA 94517-9717 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 308 MT PALOMAR PL, CLAYTON, CA 94517-1640 |
| Document Number | 0000178707 |
| Instrument Date | Sep 12, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Oct 5, 2017 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Address | 3255 ASPARA DR CLAYTON CA 945179717, CLAYTON, CA 94517-9717 |
| Document Number | 0000178707 |
|---|---|
| Date | Sep 29, 2017 |
| Instrument | 178707 |
| Name | KEYPOINT CU |
|---|---|
| Type | Credit Union |
| Address | SANTA CLARA, CA 95051 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 308 Mount Palomar Pl was $14,390 with a homeowner's exemption.
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 | $1,212,322 (+2%) Land $660,282 Building $552,040 | |
| 2025 | $14,390.00 Homeowner's exemption | $1,188,552 Land $647,336 Building $541,216 |
| 2023 | $13,802.00 (+1.2%) Homeowner's exemption | $1,142,400 Land $622,200 Building $520,200 |
| 2022 | $13,639.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 308 Mount Palomar Pl in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, 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.
Wildfire risk around 308 Mount Palomar Pl is high, ranking above 75% of the US, with a 0.4% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 75% of the US · above 50% of California |
|---|---|
| Wildfire Likelihood | 0.4% 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 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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