Contra Costa County property record for 3489 Keystone Loop, Discovery Bay, CA 94505 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 4 Baths |
| Year Built | Built 2004 |
| Square Footage | 4,088 sqft Living Area |
| Lot Size | 8,600 sqft (0.197 acres) |
| Garage | Attached, 715 sqft |
| Last Sale | $825,000 (2020) |
| Tax Bill | $12,075.00 (2025) |
| Primary APN | 011-421-015-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 11 Rooms |
| Building Area | 4,088 sqft Living Area |
| 1st Floor | 1,991 sqft 1st Floor |
| 2nd Floor | 2,097 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 | 715 sqft Garage |
| Cooling System | Central Cooling |
|---|
| Street Address | 3489 KEYSTONE LOOP |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-2320 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | T8430 L15 |
| Legal Subdivision | SUBDIVISION 8430 |
| Legal Tract | 8430 |
| Legal Lot Number | 15 |
| 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 011-421-015-6
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 | Company Name on File |
|---|---|
| Mailing Address | 3489 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Date | Document |
|---|---|
| May 01, 2024 | Intrafamily Transfer, Transfer |
| Oct 29, 2020 | Deed of Trust, Mortgage · Conventional Mortgage FINANCE OF AMERICA MORTGAGE LLC |
| Jun 17, 2020 | Grant Deed, Transfer OLD REPUBLIC TITLE |
| Jul 20, 2017 | Quit Claim Deed, Transfer · Line of Credit UNCLE CU |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 17, 2020 · Amount on Record |
| Deed Sale | Jun 17, 2020 · Amount on Record |
| Prior Sale | Sep 30, 2016 · Amount on Record |
| Deed Doc Number | 2020116631 |
| Last Transfer Date | Apr 04, 2024 |
| Transfer Doc | 0000041131 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 01, 2024 |
| Property Address | 3489 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Document Number | 0000041131 |
| Map Reference | MB 436 PG 17 |
| Instrument Date | Apr 04, 2024 |
| Instrument | 2024-041131 |
| Transaction Type | Transfer |
| Record Updated | May 17, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 3489 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3489 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | FIRST AMERICAN TTL SAN DIEGO |
| Name | Verified Name |
|---|---|
| Address | 3489 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Document Number | 0000256088 |
|---|---|
| Date | Oct 29, 2020 |
| Instrument | 2020-256088 |
| Name | FINANCE OF AMERICA MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | HORSHAM, PA 19044 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 17, 2020 |
| Property Address | 3489 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Document Number | 0000116631 |
| Instrument Date | Jun 09, 2020 |
| Instrument | 116631 |
| Transaction Type | Transfer |
| Record Updated | Jun 25, 2020 |
| Title Company | OLD REPUBLIC TITLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $908.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 3694 OTTER BROOK LOOP DISCOVERY BAY CA 945051843, DISCOVERY BAY, CA 94505-1843 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 20, 2017 |
| Property Address | 3489 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320 |
| Document Number | 0000129532 |
| Instrument Date | Jun 14, 2017 |
| Instrument | 129532 |
| Transaction Type | Transfer |
| Record Updated | Jul 25, 2017 |
| Title Company | SERVICELINK |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 3489 KEYSTONE LOOP DISCOVERY BAY CA 945052320, DISCOVERY BAY, CA 94505-2320 |
| Document Number | 129533 |
|---|---|
| Date | Jul 20, 2017 |
| Instrument | 129533 |
| Name | UNCLE CU |
|---|---|
| Type | Credit Union |
| Address | LIVERMORE, CA 94551 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Jul 19, 2042 |
| Rate Type | Adjustable Rate |
|---|
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 | $920,299 (+2%) Land $111,550 Building $808,749 | |
| 2025 | $12,075.00 (+6.25%) | $902,255 (+4.04%) Land $109,363 Building $792,892 |
| 2023 | $11,365.00 (+1.65%) | $867,221 Land $105,117 Building $762,104 |
| 2022 | $11,180.00 |
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.
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