Contra Costa County property record for 900 Helix Dr, Concord, CA 94518
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,722 sqft · built 1974 |
| Lot Size | 0.175 acres (7,622 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $441,000 (Dec 2017) |
| Tax Bill | $9,361 (2025) |
| Deeds & Mortgages | Dec 2017 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 147-320-063 |
| Primary APN | 147-320-063 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,722 sqft Living Area |
| Gross Area | 2,125 sqft |
| 1st Floor Area | 1,722 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Material | Wood Shingle |
| Lot Area | 7,622 sqft (0.175 acres) |
| Garage Type | Attached |
| Garage Area | 403 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 | 900 HELIX DR |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94518-3447 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R7 |
| Legal Description | T04484 L0004 B |
| Legal Subdivision | SUBDIVISION 4484 |
| Legal Tract | 04484 |
| Legal Lot Number | 4 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 338102 |
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 | 900 HELIX DR, CONCORD, CA 94518-3447 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 28, 2017 · Amount on Record |
| Deed Sale | Dec 28, 2017 · Amount on Record |
| Prior Sale | Oct 21, 2016 · Amount on Record |
| Deed Document Number | 2017244277 |
| Prior Transfer Date | Dec 20, 2013 |
| Prior Transfer Doc | 0000297144 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 28, 2017 |
| Property Address | 900 HELIX DR, CONCORD, CA 94518-3447 |
| Document Number | 0000244277 |
| Map Reference | MB 162 PG 48 |
| Instrument Date | Dec 22, 2017 |
| Instrument | 2017-244277 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | SPL PLACER TITLE |
| Amount | Amount Recorded |
|---|---|
| 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 | 900 HELIX DR, CONCORD, CA 94518-3447 |
| Document Number | 0000244278 |
|---|---|
| Date | Dec 28, 2017 |
| Instrument | 2017-244278 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 1, 2048 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $771,785 (+2%) Land $464,232 Building $307,553 | |
| 2025 | $9,361.00 (+4.45%) | $756,653 (+4.04%) Land $455,130 Building $301,523 |
| 2023 | $8,962.00 (+1.28%) | $727,272 Land $437,457 Building $289,815 |
| 2022 | $8,849.00 |
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 AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 4 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 99.1% of the US · lower than 99.2% 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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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 406 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
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