Contra Costa County property record for 403 Sonnet Ct, Oakley, CA 94561 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,550 sqft · built 2014 |
| Lot Size | 0.163 acres (7,079 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $376,000 (Sep 2014) |
| Tax Bill | $9,583 (2025) |
| Deeds & Mortgages | Jul 2020 Mortgage |
| Flood Zone | Zone X (reduced by levee) |
| APN | 032-490-022-4 |
| Primary APN | 032-490-022-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,550 sqft Living Area |
| 1st Floor Area | 1,182 sqft |
| 2nd Floor Area | 1,368 sqft |
| Year Built | Built 2014 |
|---|---|
| Effective Year Built | Effective 2014 |
| Architectural Style | Cluster |
| Lot Area | 7,079 sqft (0.163 acres) |
| Garage Type | Attached |
| Garage Area | 683 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 403 SONNET CT |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-5087 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8955 L291 |
| Legal Subdivision | SUBDIVISION 8955 |
| Legal Tract | 8955 |
| Legal Lot Number | 291 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3025 |
| Census Tract | 301000 |
Source: Contra Costa County records · APN 032-490-022-4
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 | 403 SONNET CT, OAKLEY, CA 94561-5087 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Sep 30, 2014 · Amount on Record |
| Deed Sale | Sep 30, 2014 · Amount on Record |
| Prior Sale | Dec 21, 2012 · Amount on Record |
| Deed Document Number | 2014166890 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 403 SONNET CT, OAKLEY, CA 94561-5087 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | PACIFIC COAST TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000146388 |
|---|---|
| Date | Jul 22, 2020 |
| Instrument | 2020-146388 |
| Name | BROKER SOLUTIONS INC |
|---|---|
| Type | Funding / Finance Company |
| Address | TUSTIN, CA 92780 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2050 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Oakley City |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Elementary School District | Oakley Union Elementary School District (KG - 08) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $460,553 (+2%) Land $91,935 Building $368,618 | |
| 2025 | $9,583.00 (+4.65%) Homeowner's exemption | $451,524 (+4.04%) Land $90,133 Building $361,391 |
| 2023 | $9,157.00 (+2.8%) Homeowner's exemption | $433,992 Land $86,634 Building $347,358 |
| 2022 | $8,908.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133010003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Reduced by levee depends on levee performance |
| 500-Year Floodplain | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Cost | Premium on Record median of 24 individual NFIP policies nearby |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 24 in force |
| Nearby Flood Claims | 16 (1978–2017) |
| Most Recent Claim | Jan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides |
| Claims By Storm |
|
| Wildfire Risk | High above 74% of the US · above 50% of California |
|---|---|
| Wildfire Likelihood | About 1 in 322 per year |
| Exposure | Direct burnable vegetation at the parcel |
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, availability as of December 31, 2025 · Published October 2026 · based on 46 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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