Contra Costa County property record for 5340 Emerald Ct, Discovery Bay, CA 94505 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,455 sqft · built 1987 |
| Lot Size | 0.161 acres (7,018 sqft) |
| Owner | Company Name on File |
| Last Sale | $305,000 (Apr 1999) |
| Tax Bill | $6,938 (2025) |
| Flood Zone | Zone X (reduced by levee) |
| APN | 008-261-007-2 |
| Primary APN | 008-261-007-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,455 sqft Living Area |
| 1st Floor Area | 1,464 sqft |
| 2nd Floor Area | 991 sqft |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Lot Area | 7,018 sqft (0.161 acres) |
| View / Lot | Lake |
| Garage Type | Attached |
| Garage Area | 571 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5340 EMERALD CT |
|---|---|
| City | DISCOVERY BAY |
| State | CA |
| Zip | 94505-9288 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T6560 L18 EX 3/4 MR |
| Legal Tract | 6560 |
| Legal Lot Number | 18 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 304003 |
Source: Contra Costa County records · APN 008-261-007-2
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 | 5340 EMERALD CT, DISCOVERY BAY, CA 94505-9288 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 09, 1999 · Amount on Record |
| Deed Sale | Apr 09, 1999 · Amount on Record |
| Deed Document Number | 199996145 |
| Record Updated | Sep 20, 2026 |
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 | $487,692 (+2%) Land $119,916 Building $367,776 | |
| 2025 | $6,938.00 (+7.32%) Homeowner's exemption | $478,130 (+4.04%) Land $117,565 Building $360,565 |
| 2023 | $6,465.00 (+1.57%) Homeowner's exemption | $459,565 Land $113,000 Building $346,565 |
| 2022 | $6,365.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133040031, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Reduced by levee depends on levee performance |
| 500-Year Floodplain | No |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 1 (1982) |
| Most Recent Claim | Jan 1982, rainfall accumulation |
| 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; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 310 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
May also be available at this address: AT&T, Zinnia Networks. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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