Contra Costa County property record for 100 Karen Ln, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,656 sqft · built 1954 |
| Lot Size | 0.116 acres (5,040 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $740,000 (Feb 2026) |
| Tax Bill | $9,014 (2025) |
| Deeds & Mortgages | Feb 2026 Sale & Mortgage Sep 2018 Mortgage + 3 more |
| Flood Zone | Zone A (high risk) |
| APN | 380-180-032-1 |
| Primary APN | 380-180-032-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,656 sqft Living Area |
| 1st Floor Area | 1,656 sqft |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Material | Tar & Gravel |
| Lot Area | 5,040 sqft (0.116 acres) |
| Garage Type | Attached |
| Garage Area | 264 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 100 KAREN LN |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-2216 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | VINE HILL VALLEY LOT 1 |
| Legal Subdivision | VINE HILL VALLEY |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 320001 |
100 Karen Ln is owned and occupied by two individuals who bought it in February 2026.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 |
|---|---|
| Feb 19, 2026 | Grant Deed, Transfer · FHA Mortgage UNITED WHOLESALE MORTGAGE |
| Sep 6, 2018 | Deed of Trust, Mortgage · FHA Mortgage NEW PENN FINANCIAL LLC |
| Jun 6, 2022 | Grant Deed, Transfer · FHA Mortgage HOMEOWNERS FINANCIAL GROUP USA LLC |
| Jul 16, 2019 | Deed of Trust, Mortgage · FHA Mortgage NEWFI LNDG |
| Jul 27, 2017 | Grant Deed, Transfer MOUNTAIN WEST FINANCIAL INC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 19, 2026 · Amount on File |
| Deed Sale | Feb 19, 2026 · Amount on File |
| Prior Sale | Jun 6, 2022 · Amount on File |
| Deed Document Number | 202616661 |
| Prior Transfer Date | Oct 14, 2014 |
| Prior Transfer Doc | 0000207288 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Feb 19, 2026 |
| Property Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Document Number | 0000016661 |
| Map Reference | MB 53 PG 22 |
| Instrument Date | Feb 17, 2026 |
| Instrument | 2026- 016661 |
| Transaction Type | Transfer |
| Record Updated | Mar 6, 2026 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC 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 | Joint Tenants |
| Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Document Number | 0000016662 |
|---|---|
| Date | Feb 19, 2026 |
| Instrument | 2026- 016662 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2056 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIDELITY TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000142643 |
|---|---|
| Date | Sep 6, 2018 |
| Instrument | 2018-142643 |
| Name | NEW PENN FINANCIAL LLC |
|---|---|
| Type | Mortgage Company |
| Address | PLYMOUTH MEETING, PA 19462 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Sep 1, 2048 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 6, 2022 |
| Property Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Document Number | 0000094658 |
| Map Reference | MB 53 PG 22 |
| Instrument Date | Jun 1, 2022 |
| Instrument | 2022-094658 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| 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 |
|---|---|
| Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Document Number | 0000094659 |
|---|---|
| Date | Jun 6, 2022 |
| Instrument | 2022-094659 |
| Name | HOMEOWNERS FINANCIAL GROUP USA LLC |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Document Number | 0000113349 |
| Instrument Date | Jul 16, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Jul 30, 2019 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 100 KAREN LN MARTINEZ CA 945532216, MARTINEZ, CA 94553-2216 |
| Document Number | 0000113349 |
|---|---|
| Date | Jul 22, 2019 |
| Instrument | 113349 |
| Name | NEWFI LNDG |
|---|---|
| Address | EMERYVILLE, CA 94608 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jul 21, 2049 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 27, 2017 |
| Property Address | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Document Number | 0000134926 |
| Map Reference | MB53 PG22 |
| Instrument Date | Jul 24, 2017 |
| Instrument | 2017-134926 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO 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 | 100 KAREN LN, MARTINEZ, CA 94553-2216 |
| Document Number | 0000134927 |
|---|---|
| Date | Jul 27, 2017 |
| Instrument | 2017-134927 |
| Name | MOUNTAIN WEST FINANCIAL INC |
|---|---|
| Type | Funding / Finance Company |
| Amount | Amount on Record |
|---|---|
| Term | 361 Months |
| Due | Aug 1, 2047 |
The 2025 property tax bill for 100 Karen Ln was $9,014.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Martinez Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $700,330 (+2%) Land $514,154 Building $186,176 | |
| 2025 | $9,014.00 Homeowner's exemption | $686,599 Land $504,073 Building $182,526 |
| 2023 | $8,418.00 (+50.91%) Homeowner's exemption | $659,940 Land $484,500 Building $175,440 |
| 2022 | $5,578.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 100 Karen Ln in Zone A, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone A high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Not determined for this zone |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 22 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 22 in force |
| Nearby Flood Claims | 11 (1986–2022) |
| Claims Outside the SFHA | 2 of 11 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
Wildfire risk around 100 Karen Ln is low, with less than a 0.01% annual chance of wildfire.
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 208 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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