Contra Costa County property record for 3495 Keystone Loop, Discovery Bay, CA 94505 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 4 Baths |
| Year Built | Built 2004 |
| Square Footage | 4,011 sqft Living Area |
| Lot Size | 8,600 sqft (0.197 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $750,000 (2018) |
| Tax Bill | $11,462.00 (2025) |
| Primary APN | 011-421-016-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 12 Rooms |
| Building Area | 4,011 sqft Living Area |
| 1st Floor | 1,984 sqft 1st Floor |
| 2nd Floor | 2,027 sqft 2nd Floor |
| Stories | 2 Stories |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2004 |
| Architectural Style | Cluster Style |
| Lot Area | 8,600 sqft (0.197 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 438 sqft Garage |
| Cooling System | Central Cooling |
|---|
| Street Address | 3495 KEYSTONE LOOP |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-2320 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | T8430 L16 |
| Legal Subdivision | SUBDIVISION 8430 |
| Legal Tract | 8430 |
| Legal Lot Number | 16 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | EAST CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3001 |
| Census Tract | 304007 |
Source: Contra Costa County records · APN 011-421-016-4
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 Individual Names on File |
|---|---|
| Mailing Address | 3495 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Oct 11, 2019 | Deed of Trust, Mortgage · Conventional Mortgage GUILD MORTGAGE CO |
| Mar 01, 2018 | Grant Deed, Transfer · Conventional Mortgage GUILD MORTGAGE CO |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 01, 2018 · Amount on Record |
| Deed Sale | Mar 01, 2018 · Amount on Record |
| Prior Sale | Oct 28, 2011 · Amount on Record |
| Deed Doc Number | 201831863 |
| Prior Transfer Date | Mar 23, 2004 |
| Prior Transfer Doc | 0000102132 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3495 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000173298 |
|---|---|
| Date | Oct 11, 2019 |
| Instrument | 2019-173298 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Address | SAN DIEGO, CA 92111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Nov 01, 2034 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Mar 01, 2018 |
| Property Address | 3495 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Document Number | 0000031863 |
| Map Reference | DOC2002-262657 |
| Instrument Date | Feb 23, 2018 |
| Instrument | 2018-031863 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded Values by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3495 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Document Number | 0000031864 |
|---|---|
| Date | Mar 01, 2018 |
| Instrument | 2018-031864 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 01, 2048 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Elementary School District | Byron Union Elementary School District (KG - 08) |
| Secondary School District | Liberty Union High School District (09 - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $870,435 (+2%) Land $150,874 Building $719,561 | |
| 2025 | $11,462.00 (+6.35%) Homeowner's exemption | $853,368 (+4.04%) Land $147,916 Building $705,452 |
| 2023 | $10,778.00 (+1.67%) Homeowner's exemption | $820,232 Land $142,173 Building $678,059 |
| 2022 | $10,601.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Moderate |
| 500-Year Floodplain | Yes |
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Wildfire Risk | Moderate above 56% of the US · above 33% of California |
|---|---|
| Wildfire Likelihood | About 1 in 847 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures