Contra Costa County property record for 1850 William Way, Concord, CA 94520 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,094 sqft · built 1958 |
| Lot Size | 0.124 acres (5,400 sqft) |
| Owner | Individual Name on File |
| Last Sale | $620,000 (Dec 2025) |
| Tax Bill | $1,790 (2025) |
| Deeds & Mortgages | Dec 2025 Transfer Dec 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 128-083-006-6 |
| Primary APN | 128-083-006-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,094 sqft Living Area |
| 1st Floor Area | 1,094 sqft |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1963 |
| Lot Area | 5,400 sqft (0.124 acres) |
| Garage Type | Attached |
| Garage Area | 461 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1850 WILLIAM WAY |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-3951 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 2384 343 |
| Legal Subdivision | SUNSHINE ESTATES UNIT #9 |
| Legal Tract | 2384 |
| Legal Lot Number | 343 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 336201 |
Source: Contra Costa County records · APN 128-083-006-6
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 | Individual Name on File |
|---|---|
| Mailing Address | 1180 TILSON DR, CONCORD, CA 94520-4058 |
| Owner Type | Individual |
| Vesting | Sole Owner |
| Date | Document |
|---|---|
| Dec 19, 2025 | Intrafamily Transfer, Transfer CHICAGO TITLE COMPANY |
| Dec 19, 2025 | Grant Deed, Transfer · Conventional Mortgage ROCKET MORTGAGE LLC |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 19, 2025 · Amount on Record |
| Deed Sale | Dec 19, 2025 · Amount on Record |
| Deed Document Number | 2025141833 |
| Prior Transfer Date | Dec 18, 2025 |
| Prior Transfer Doc | 0000141832 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 19, 2025 |
| Property Address | 1850 WILLIAM WAY, CONCORD, CA 94520-3951 |
| Document Number | 0000141832 |
| Map Reference | MB 64 PG 14 |
| Instrument Date | Dec 18, 2025 |
| Instrument | 2025- 141832 |
| Transaction Type | Transfer |
| Record Updated | Jan 01, 2026 |
| Title Company | CHICAGO TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 1180 TILSON DR, CONCORD, CA 94520-4058 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 19, 2025 |
| Property Address | 1850 WILLIAM WAY, CONCORD, CA 94520-3951 |
| Document Number | 0000141833 |
| Map Reference | MB 64 PG 14 |
| Instrument Date | Dec 15, 2025 |
| Instrument | 2025- 141833 |
| Transaction Type | Transfer |
| Record Updated | Jan 01, 2026 |
| 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 | Separate Estate/Property |
| Address | 1180 TILSON DR, CONCORD, CA 94520-4058 |
| Document Number | 0000141834 |
|---|---|
| Date | Dec 19, 2025 |
| Instrument | 2025- 141834 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 481 Months |
| Due | Jan 01, 2066 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
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 | $620,000 (+642.27%) Land $460,000 Building $160,000 | |
| 2025 | $1,790.00 (+7.7%) Homeowner's exemption | $83,528 (+4.04%) Land $32,326 Building $51,202 |
| 2023 | $1,662.00 (+3.23%) Homeowner's exemption | $80,287 Land $31,072 Building $49,215 |
| 2022 | $1,610.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133362011, 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 |
| Nearby Flood Claims | 1 (1982) |
| Most Recent Claim | Jan 1982, rainfall accumulation, Severe Storms, Flood, Mudslides & High Tide |
| 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 747 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Cable | 1,500 / 50 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: AT&T, T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.
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