Contra Costa County property record for 5431 Piper Ln, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,506 sqft · built 1990 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $536,000 (Jul 2004) |
| Tax Bill | $9,175 (2025) |
| Deeds & Mortgages | Oct 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 037-332-006-8 |
| Primary APN | 037-332-006-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,506 sqft Living Area |
| Gross Area | 3,139 sqft |
| 1st Floor Area | 1,318 sqft |
| 2nd Floor Area | 1,188 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1990 |
| Exterior Material | Stucco |
| Roof Material | Tile |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Attached |
| Garage Area | 633 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 | 5431 PIPER LN |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-3122 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7193 L57 |
| Legal Subdivision | SUBDIVISION 7193 |
| Legal Tract | 7193 |
| Legal Lot Number | 57 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 302006 |
5431 Piper Ln is owned and occupied by two individuals who acquired it in May 2006.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 5431 PIPER LN, OAKLEY, CA 94561-3122 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 21, 2004 · Amount on File |
| Deed Sale | Jul 21, 2004 · Amount on File |
| Prior Sale | Mar 30, 1998 · Amount on File |
| Deed Document Number | 2004280596 |
| Last Transfer Date | May 2, 2006 |
| Transfer Doc | 0000146947 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5431 PIPER LN, OAKLEY, CA 94561-3122 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | MORTGAGE INFORMATION SVCS |
| Name | Verified Name |
|---|---|
| Address | 5431 PIPER LN, OAKLEY, CA 94561-3122 |
| Document Number | 0000286761 |
|---|---|
| Date | Oct 19, 2021 |
| Instrument | 2021-286761 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2051 |
The 2025 property tax bill for 5431 Piper Ln was $9,175 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 | Oakley City |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Elementary School District | Oakley Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $762,061 (+2%) Land $213,259 Building $548,802 | |
| 2025 | $9,175.00 Homeowner's exemption | $747,120 Land $209,078 Building $538,042 |
| 2023 | $8,903.00 (+0.9%) Homeowner's exemption | $718,110 Land $200,960 Building $517,150 |
| 2022 | $8,824.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 5431 Piper Ln in Zone X, an area of minimal flood risk.
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 | 5 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.
Wildfire risk around 5431 Piper Ln is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
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 | DIABLO WATER DISTRICT serves 47,158 people · EPA ID CA0710007 |
|---|---|
| Water Source | Purchased surface water from RANDALL-BOLD WATER TREATMENT PLANT |
| Last State Inspection | Jan 2024 |
| Also Mapped Here | CONTRA COSTA WATER DISTRICT |
| Lead | 2 ppb (2020–2022) 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 301 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 |
| AT&T DSL | 100 / 20 |
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