Contra Costa County property record for 3607 Otter Brook Loop, Discovery Bay, CA 94505
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,509 sqft · built 2003 |
| Lot Size | 0.163 acres (7,112 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $650,000 (Apr 2020) |
| Tax Bill | $9,977 (2025) |
| Deeds & Mortgages | Nov 2021 Mortgage Apr 2020 Sale & Mortgage + 1 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 011-430-001-5 |
| Primary APN | 011-430-001-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,509 sqft Living Area |
| 1st Floor Area | 1,976 sqft |
| 2nd Floor Area | 1,533 sqft |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2003 |
| Architectural Style | Cluster |
| Lot Area | 7,112 sqft (0.163 acres) |
| View / Lot | Lake |
| Garage Type | Attached |
| Garage Area | 794 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 3607 OTTER BROOK LOOP |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-1853 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | P1 |
| Legal Description | T8428 L1 |
| Legal Subdivision | SUBDIVISION 8428 |
| Legal Tract | 8428 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 304007 |
Source: Contra Costa County records · APN 011-430-001-5
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 | 3607 OTTER BROOK LOOP, DISCOVERY BAY, CA 94505-1853 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Nov 01, 2021 | Deed of Trust, Mortgage · FHA Mortgage DEPARTMENT OF HOUSING & URBAN DEV |
| Apr 03, 2020 | Grant Deed, Transfer · Conventional Mortgage UNISON AGREEMENT CORP |
| Apr 05, 2018 | Grant Deed, Transfer · ARM US BANK NA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Apr 03, 2020 · Amount on Record |
| Deed Sale | Apr 03, 2020 · Amount on Record |
| Prior Sale | Apr 05, 2018 · Amount on Record |
| Deed Document Number | 202064308 |
| Prior Transfer Date | Sep 28, 2006 |
| Prior Transfer Doc | 0000316373 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3607 OTTER BROOK LOOP, DISCOVERY BAY, CA 94505-1853 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Name | Verified Name |
|---|---|
| Address | 3607 OTTER BROOK LOOP, DISCOVERY BAY, CA 94505-1853 |
| Document Number | 0000305007 |
|---|---|
| Date | Nov 01, 2021 |
| Instrument | 2021-305007 |
| Name | DEPARTMENT OF HOUSING & URBAN DEV |
|---|---|
| Type | Government Agency |
| Address | WASHINGTON, DC 20410 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 01, 2051 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 03, 2020 |
| Property Address | 3607 OTTER BROOK LOOP, DISCOVERY BAY, CA 94505-1853 |
| Document Number | 0000064308 |
| Map Reference | MB 436 PG 10 |
| Instrument Date | Mar 31, 2020 |
| Instrument | 2020-064308 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | 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 |
|---|---|
| Address | 3607 OTTER BROOK LOOP, DISCOVERY BAY, CA 94505-1853 |
| Document Number | 0000064309 |
|---|---|
| Date | Apr 03, 2020 |
| Instrument | 2020-064309 |
| Name | UNISON AGREEMENT CORP |
|---|---|
| Type | Non-Lending Institution |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 01, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 05, 2018 |
| Property Address | 3607 OTTER BROOK LOOP, DISCOVERY BAY, CA 94505-1853 |
| Document Number | 0000052226 |
| Map Reference | MB 436 PG 10 |
| Instrument Date | Mar 28, 2018 |
| Instrument | 2018-052226 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | FIDELITY NATIONAL TITLE COMP |
| 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 | Community Property with Right of Survivorship |
| Address | 1977 GOSHEN AVE, CLOVIS, CA 93611-6665 |
| Document Number | 0000052227 |
|---|---|
| Date | Apr 05, 2018 |
| Instrument | 2018-052227 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 01, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.87% |
| Type Change Date | Apr 01, 2028 |
| Change Frequency | Annually |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 8.87% |
| Index | 1-Year LIBOR |
| Max Rate | 8.87% |
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 | $725,081 (+2%) Land $89,237 Building $635,844 | |
| 2025 | $9,977.00 (+6.53%) | $710,865 (+4.04%) Land $87,488 Building $623,377 |
| 2023 | $9,365.00 (+1.65%) | $683,263 Land $84,092 Building $599,171 |
| 2022 | $9,213.00 |
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 060133040073, 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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 2 in force |
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: AT&T, T-Mobile USA.
Based on FCC filings for 226 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system CA0710009, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | TOWN OF DISCOVERY BAY serves 16,790 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2023 |
| 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. The full violation and enforcement history is in the system's EPA record.
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