Contra Costa County property record for 515 4th St, Oakley, CA 94561 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,214 sqft · built 1968 |
| Lot Size | 0.198 acres (8,640 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $585,000 (Apr 2023) |
| Tax Bill | $7,689 (2025) |
| Deeds & Mortgages | Apr 2023 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-153-008-4 |
| Primary APN | 035-153-008-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,214 sqft Living Area |
| 1st Floor Area | 2,214 sqft |
| Year Built | Built 1968 |
|---|---|
| Effective Year Built | Effective 1968 |
| Lot Area | 8,640 sqft (0.198 acres) |
| Garage Type | Attached |
| Garage Area | 470 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 515 4TH ST |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-2175 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | O HARA ADDN LOT 8 BLK 14 |
| Legal Subdivision | O HARA ADD |
| Legal Block | 14 |
| Legal Lot Number | 8 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2021 |
| Census Tract | 302007 |
Source: Contra Costa County records · APN 035-153-008-4
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 | 515 4TH ST, OAKLEY, CA 94561-2175 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Apr 18, 2023 · Amount on Record |
| Deed Sale | Apr 18, 2023 · Amount on Record |
| Deed Document Number | 202335874 |
| Prior Transfer Date | Jul 03, 2013 |
| Prior Transfer Doc | 0000175902 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 18, 2023 |
| Property Address | 515 4TH ST, OAKLEY, CA 94561-2175 |
| Document Number | 0000035874 |
| Map Reference | MB C PG 60 |
| Instrument Date | Apr 11, 2023 |
| Instrument | 2023-035874 |
| Transaction Type | Transfer |
| Record Updated | Apr 27, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 515 4TH ST, OAKLEY, CA 94561-2175 |
| Document Number | 0000035875 |
|---|---|
| Date | Apr 18, 2023 |
| Instrument | 2023-035875 |
| Name | MASON MCDUFFIE MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2053 |
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 and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $620,806 (+2%) Land $291,832 Building $328,974 | |
| 2025 | $7,689.00 (+305.11%) | $608,634 (+683.39%) Land $286,110 Building $322,524 |
| 2023 | $1,898.00 (+0.42%) | $77,692 Land $18,112 Building $59,580 |
| 2022 | $1,890.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133020072, 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 | Minimal |
| 500-Year Floodplain | No |
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 1 (1998) |
| Most Recent Claim | Feb 1998, other causes, Severe Winter Storms And Flooding |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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 645 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
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