Contra Costa County property record for 506 Dean Ln, Martinez, CA 94553
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 3,557 sqft · built 2023 |
| Lot Size | 0.174 acres (7,581 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $1,542,000 (Aug 2023) |
| Tax Bill | $15,614 (2025) |
| Deeds & Mortgages | Mar 2026 Transfer Aug 2023 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 162-580-023-8 |
| Primary APN | 162-580-023-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 3,557 sqft Living Area |
| 1st Floor Area | 1,849 sqft |
| 2nd Floor Area | 1,708 sqft |
| Year Built | Built 2023 |
|---|---|
| Effective Year Built | Effective 2023 |
| Lot Area | 7,581 sqft (0.174 acres) |
| Garage Type | Attached |
| Garage Area | 438 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 506 DEAN LN |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-4768 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T9358 L23 |
| Legal Subdivision | TRADITIONS/THE MDW SUB 9358 |
| Legal Tract | 9358 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3014 |
| Census Tract | 321101 |
Source: Contra Costa County records · APN 162-580-023-8
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 | 2 Company Names on File |
|---|---|
| Mailing Address | 506 DEAN LN, MARTINEZ, CA 94553-4768 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Date | Document |
|---|---|
| Mar 06, 2026 | Intrafamily Transfer, Transfer |
| Aug 23, 2023 | Grant Deed, Transfer · Conventional Mortgage CMG MORTGAGE INC |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 23, 2023 · Amount on Record |
| Deed Sale | Aug 23, 2023 · Amount on Record |
| Deed Document Number | 202381161 |
| Last Transfer Date | Mar 04, 2026 |
| Transfer Doc | 0000022202 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Mar 06, 2026 |
| Property Address | 506 DEAN LN, MARTINEZ, CA 94553-4768 |
| Document Number | 0000022202 |
| Map Reference | MB 548 PG 21 |
| Instrument Date | Mar 04, 2026 |
| Instrument | 2026- 022202 |
| Transaction Type | Transfer |
| Record Updated | Mar 17, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 506 DEAN LN, MARTINEZ, CA 94553-4768 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Aug 23, 2023 |
| Property Address | 506 DEAN LN, MARTINEZ, CA 94553-4768 |
| Document Number | 0000081161 |
| Map Reference | MB 548 PG 21 |
| Instrument Date | Jul 19, 2023 |
| Instrument | 2023-081161 |
| Transaction Type | Transfer |
| Record Updated | Sep 01, 2023 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC 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 | Joint Tenants |
| Address | 506 DEAN LN, MARTINEZ, CA 94553-4768 |
| Document Number | 0000081162 |
|---|---|
| Date | Aug 23, 2023 |
| Instrument | 2023-081162 |
| Name | CMG MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Sep 01, 2053 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Martinez 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 | $914,249 (+2%) Land $425,519 Building $488,730 | |
| 2025 | $15,614.00 (+146.43%) Homeowner's exemption | $896,324 (+316.17%) Land $417,176 Building $479,148 |
| 2023 | $6,336.00 (+241.75%) | $215,377 Land $215,377 |
| 2022 | $1,854.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Low lower than 95% of the US · lower than 97% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| 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 as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Radiate Holdings Fiber · Cable in parts of the area | 1,500 / 1,500 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
Based on FCC filings for 528 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF MARTINEZ serves 31,015 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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