Contra Costa County property record for 3820 Armstrong Ct, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,339 sqft · built 1994 |
| Lot Size | 0.163 acres (7,100 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $300,000 (Mar 2015) |
| Tax Bill | $5,597 (2025) |
| Deeds & Mortgages | Feb 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-290-072-7 |
| Primary APN | 034-290-072-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,339 sqft Living Area |
| 1st Floor Area | 1,339 sqft |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1994 |
| Lot Area | 7,100 sqft (0.163 acres) |
| Garage Type | Attached |
| Garage Area | 486 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 3820 ARMSTRONG CT |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-4243 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7667 L72 |
| Legal Subdivision | SUBDIVISION 7667 |
| Legal Tract | 7667 |
| Legal Lot Number | 72 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 302007 |
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 | 3820 ARMSTRONG CT, OAKLEY, CA 94561-4243 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 30, 2015 · Amount on Record |
| Deed Sale | Mar 30, 2015 · Amount on Record |
| Prior Sale | Feb 5, 2010 · Amount on Record |
| Deed Document Number | 201557049 |
| Last Transfer Date | Feb 8, 2021 |
| Transfer Doc | 0000047393 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Feb 16, 2021 |
| Property Address | 3820 ARMSTRONG CT, OAKLEY, CA 94561-4243 |
| Document Number | 0000047393 |
| Map Reference | MB 364 PG 24 |
| Instrument Date | Feb 8, 2021 |
| Instrument | 2021-047393 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3820 ARMSTRONG CT, OAKLEY, CA 94561-4243 |
| Document Number | 0000047394 |
|---|---|
| Date | Feb 16, 2021 |
| Instrument | 2021-047394 |
| Name | COMMERCE HOME MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 241 Months |
| Due | Mar 1, 2041 |
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 | $367,756 (+2%) Land $128,713 Building $239,043 | |
| 2025 | $5,597.00 (+3.02%) | $360,546 (+4.04%) Land $126,190 Building $234,356 |
| 2023 | $5,433.00 (+1.02%) | $346,547 Land $121,291 Building $225,256 |
| 2022 | $5,378.00 |
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 | 2 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 | Low lower than 97% of the US · lower than 97.8% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 338 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| 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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