Contra Costa County property record for 3631 Main St, Oakley, CA 94561
| Property Type | Medical Building |
|---|---|
| Details | 2,903 sqft · built 1953 |
| Lot Size | 0.102 acres (4,420 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $11,461 (2025) |
| Deeds & Mortgages | Oct 2018 Line of Credit Oct 2018 Line of Credit + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-122-004-1 |
| Primary APN | 035-122-004-1 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,903 sqft Gross Area |
| 1st Floor Area | 2,903 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Lot Area | 4,420 sqft (0.102 acres) |
| Street Address | 3631 MAIN ST |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-5779 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Medical Building |
| Legal Description | TOWN OF OAKLEY LOT 9 BLK 10 |
| Legal Subdivision | OAKLEY |
| Legal Block | 10 |
| Legal Lot Number | 9 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2005 |
| 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 | Company Name on Record |
|---|---|
| Mailing Address | 3623 MAIN ST, OAKLEY, CA 94561-5779 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Oct 31, 2018 | Deed of Trust, Mortgage · Line of Credit FIRST CITIZENS BANK & TRUST CO |
| Oct 31, 2018 | Deed of Trust, Mortgage · Line of Credit FIRST CITIZENS BANK & TRUST CO |
| Oct 15, 2018 | Grant Deed, Transfer · Line of Credit FIRST CITIZENS BANK & TRUST CO |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Feb 2, 2002 |
| Transfer Doc | 0000052259 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3631 MAIN ST, OAKLEY, CA 94561-5779 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | NORTH AMERICAN TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000177499 |
|---|---|
| Date | Oct 31, 2018 |
| Instrument | 2018-177499 |
| Name | FIRST CITIZENS BANK & TRUST CO |
|---|---|
| Type | Bank |
| Address | RALEIGH, NC 27611 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3631 MAIN ST, OAKLEY, CA 94561-5779 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | NORTH AMERICAN TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000177500 |
|---|---|
| Date | Oct 31, 2018 |
| Instrument | 2018-177500 |
| Name | FIRST CITIZENS BANK & TRUST CO |
|---|---|
| Type | Bank |
| Address | RALEIGH, NC 27611 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 15, 2018 |
| Property Address | 3631 MAIN ST, OAKLEY, CA 94561-5779 |
| Document Number | 0000163430 |
| Map Reference | MB C PG 60 |
| Instrument Date | Oct 11, 2018 |
| Instrument | 2018-163430 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | NORTH AMERICAN TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3623 MAIN ST # 3631, 3631, OAKLEY, CA 94561-5779 |
| Document Number | 0000163432 |
|---|---|
| Date | Oct 15, 2018 |
| Instrument | 2018-163432 |
| Name | FIRST CITIZENS BANK & TRUST CO |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
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 | $952,444 (-4.71%) Land $32,560 Building $919,884 | |
| 2025 | $11,461.00 (-6.89%) | $999,566 (-6.57%) Land $31,922 Building $967,644 |
| 2023 | $12,309.00 (+9.04%) | $1,069,806 Land $30,684 Building $1,039,122 |
| 2022 | $11,289.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 1 (1998) |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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 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 378 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 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
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