Contra Costa County property record for 320 Marks Rd, Alamo, CA 94507
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,020 sqft · built 1963 |
| Lot Size | 1.35 acres (58,806 sqft) |
| Owner | Individual Name on File |
| Last Sale | $2,000,000 (Apr 2024) |
| Tax Bill | $23,136 (2025) |
| Deeds & Mortgages | Apr 2024 Sale & Mortgage Nov 2017 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 196-091-006-3 |
| Primary APN | 196-091-006-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 3,020 sqft Living Area |
| Gross Area | 3,470 sqft |
| 1st Floor Area | 2,006 sqft |
| Basement Area | 1,014 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 58,806 sqft |
| Garage Type | Attached |
| Garage Area | 450 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Septic |
| Water Source | Commercial |
| Street Address | 320 MARKS RD |
|---|---|
| City | ALAMO |
| State | CA |
| Zip | 94507-2747 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R40 |
| Legal Description | POR SE 1/4 SEC 17 T1S R1W 1.35 AC |
| Legal Range | 01W |
| Legal Township | 01S |
| Legal Section | 17 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 346206 |
Source: Contra Costa County assessment roll, APN 196-091-006-3, as of 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 | 1836 THE STRAND, D, HERMOSA BEACH, CA 90254-3417 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Apr 05, 2024 | Grant Deed, Transfer · Conventional Mortgage ROCKET MORTGAGE LLC |
| Nov 16, 2017 | Deed of Trust, Mortgage · Commercial Mortgage CK CAPITAL INVESTMENTS LLC |
| Oct 06, 2022 | Agreement of Sale, Transfer |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 05, 2024 · Amount on Record |
| Deed Sale | Apr 05, 2024 · Amount on Record |
| Prior Sale | Apr 30, 1999 · Amount on Record |
| Deed Document Number | 202431466 |
| Prior Transfer Date | Apr 01, 2005 |
| Prior Transfer Doc | 0000151053 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 05, 2024 |
| Property Address | 320 MARKS RD, ALAMO, CA 94507-2747 |
| Document Number | 0000031466 |
| Instrument Date | Mar 22, 2024 |
| Instrument | 2024-031466 |
| Transaction Type | Transfer |
| Record Updated | Apr 17, 2024 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| 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 |
|---|---|
| Address | 1836 THE STRAND APT D, D, HERMOSA BEACH, CA 90254-3417 |
| Document Number | 0000031467 |
|---|---|
| Date | Apr 05, 2024 |
| Instrument | 2024-031467 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2054 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 320 MARKS RD, ALAMO, CA 94507-2747 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | PACIFIC COAST TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000216274 |
|---|---|
| Date | Nov 16, 2017 |
| Instrument | 2017-216274 |
| Name | CK CAPITAL INVESTMENTS LLC |
|---|---|
| Type | Non-Lending Institution |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 25 Months |
| Due | Dec 01, 2019 |
| Document Type | Agreement of Sale |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 06, 2022 |
| Property Address | 320 MARKS RD, ALAMO, CA 94507-2747 |
| Document Number | 0000150750 |
| Instrument Date | Dec 31, 2021 |
| Instrument | 2022-150750 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
Source: Contra Costa County assessment roll as of July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,080,800 (+2%) Land $1,664,640 Building $416,160 | |
| 2025 | $23,136.00 (+103.9%) | $2,040,000 (+99.5%) Land $1,632,000 Building $408,000 |
| 2023 | $11,347.00 (+0.73%) Homeowner's exemption | $1,022,564 Land $486,433 Building $536,131 |
| 2022 | $11,265.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133462061, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Moderate above 45% of the US · lower than 73% of California |
|---|---|
| Wildfire Likelihood | 0.07% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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, 164 locations within half a mile, as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: AT&T, Etheric Communications, LLC., T-Mobile USA, Verizon.
Source: EPA Safe Drinking Water Information System, water system CA0110005, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | EAST BAY MUD serves 1,468,000 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them. The full violation and enforcement history is in the system's EPA record.
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