Contra Costa County property record for 517 Westaire Blvd, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,904 sqft · built 1997 |
| Lot Size | 0.094 acres (4,100 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $670,000 (May 2017) |
| Tax Bill | $10,329 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage May 2017 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 377-310-004-9 |
| Primary APN | 377-310-004-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,904 sqft Living Area |
| 1st Floor Area | 1,050 sqft |
| 2nd Floor Area | 854 sqft |
| Year Built | Built 1997 |
|---|---|
| Effective Year Built | Effective 1997 |
| Architectural Style | Cluster |
| Lot Area | 4,100 sqft (0.094 acres) |
| Garage Type | Attached |
| Garage Area | 448 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 517 WESTAIRE BLVD |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-3585 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7297 POR LT 151 |
| Legal Subdivision | SUBDIVISION 7297 |
| Legal Tract | 7297 |
| Legal Lot Number | 151 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 320003 |
517 Westaire Blvd is owned and occupied by two individuals who bought it in May 2017.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 517 WESTAIRE BLVD, MARTINEZ, CA 94553-3585 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Oct 30, 2020 | Deed of Trust, Mortgage · Conventional Mortgage FAIRWAY INDEPENDENT MORTGAGE CORP |
| May 22, 2017 | Grant Deed, Transfer · Conventional Mortgage FINANCE OF AMERICA MORTGAGE LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 22, 2017 · Amount on File |
| Deed Sale | May 22, 2017 · Amount on File |
| Prior Sale | Feb 5, 2016 · Amount on File |
| Deed Document Number | 201788126 |
| Prior Transfer Date | Apr 14, 2004 |
| Prior Transfer Doc | 0000146747 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 517 WESTAIRE BLVD, MARTINEZ, CA 94553-3585 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | STEWART TITLE OF CA INC |
| Name | Verified Name |
|---|---|
| Address | 517 WESTAIRE BLVD, MARTINEZ, CA 94553-3585 |
| Document Number | 0000257384 |
|---|---|
| Date | Oct 30, 2020 |
| Instrument | 2020-257384 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | CARROLLTON, TX 75007 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 22, 2017 |
| Property Address | 517 WESTAIRE BLVD, MARTINEZ, CA 94553-3585 |
| Document Number | 0000088126 |
| Map Reference | MAP353 PG41 |
| Instrument Date | May 10, 2017 |
| Instrument | 2017-088126 |
| Transaction Type | Transfer |
| Record Updated | Jul 27, 2021 |
| Title Company | PLACER TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 517 WESTAIRE BLVD, MARTINEZ, CA 94553-3585 |
| Document Number | 0000088127 |
|---|---|
| Date | May 22, 2017 |
| Instrument | 2017-088127 |
| Name | FINANCE OF AMERICA MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2047 |
The 2025 property tax bill for 517 Westaire Blvd was $10,329.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez City |
| Unified School District | Martinez Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $793,137 (+2%) Land $426,163 Building $366,974 | |
| 2025 | $10,329.00 | $777,586 Land $417,807 Building $359,779 |
| 2023 | $9,662.00 (+2.36%) | $747,393 Land $401,584 Building $345,809 |
| 2022 | $9,439.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 517 Westaire Blvd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1986.
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 |
| Nearby Flood Claims | 1 (1986) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1986 · Severe Storms & 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.
The area around 517 Westaire Blvd has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 | CITY OF MARTINEZ serves 31,015 people · EPA ID CA0710006 |
|---|---|
| Water Source | Purchased surface water from CONTRA COSTA WATER DISTRICT |
| Last State Inspection | Oct 2025 |
| Lead | Under 1 ppb (2023–2025) 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 596 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 DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Astound Broadband.
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