Contra Costa County property record for 3526 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 | 4,088 sqft Living Area |
| Lot Size | 7,200 sqft (0.165 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $176,000 (2015) |
| Tax Bill | $6,818.00 (2025) |
| Primary APN | 011-421-031-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 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 | 7,200 sqft (0.165 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 715 sqft Garage |
| Cooling System | Central Cooling |
|---|
| Street Address | 3526 KEYSTONE LOOP |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-2321 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | T8430 L31 |
| Legal Subdivision | SUBDIVISION 8430 |
| Legal Tract | 8430 |
| Legal Lot Number | 31 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | EAST CONTRA COSTA |
| Census Blockgroup | 3 |
| Census Block | 3003 |
| Census Tract | 304007 |
Source: Contra Costa County records · APN 011-421-031-3
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 | 3526 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2321 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Nov 29, 2021 | Deed of Trust, Mortgage · Conventional Mortgage ROCKET MORTGAGE LLC |
| Sep 23, 2019 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 19, 2015 · Amount on Record |
| Deed Sale | Nov 19, 2015 · Amount on Record |
| Prior Sale | Feb 06, 2012 · Amount on Record |
| Deed Doc Number | 2015241850 |
| Prior Transfer Date | Aug 11, 2006 |
| Prior Transfer Doc | 0000268738 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3526 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2321 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | AMROCK INC |
| Name | Verified Name |
|---|---|
| Address | 3526 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2321 |
| Document Number | 0000324965 |
|---|---|
| Date | Nov 29, 2021 |
| Instrument | 2021-324965 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3526 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2321 |
| Document Number | 0000161825 |
| Instrument Date | Sep 23, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Oct 15, 2019 |
| Title Company | AMROCK TITLE CA INC |
| Name | Verified Name |
|---|---|
| Relationship | Husband And Wife |
| Address | 3526 KEYSTONE LOOP DISCOVERY BAY CA 945052321, DISCOVERY BAY, CA 94505-2321 |
| Document Number | 0000161825 |
|---|---|
| Date | Sep 27, 2019 |
| Instrument | 161825 |
| Name | QUICKEN LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | DETROIT, MI 48226-1906 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 26, 2049 |
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 | $431,230 (+2%) Land $39,198 Building $392,032 | |
| 2025 | $6,818.00 (+7.29%) | $422,776 (+4.04%) Land $38,430 Building $384,346 |
| 2023 | $6,355.00 (+1.66%) | $406,361 Land $36,939 Building $369,422 |
| 2022 | $6,251.00 |
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 A, within 500 ft |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures