Los Angeles County property record for 1557 Emerald Ln, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 5 ba · 4,323 sqft · built 1998 |
| Lot Size | 0.187 acres (8,135 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $527,081 (Dec 1998) |
| Tax Bill | $10,269 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8763-031-035 |
| Primary APN | 8763-031-035 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 5 Baths |
| Building Area | 4,323 sqft Living Area |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1998 |
| Construction Type | Wood |
| Lot Area | 8,135 sqft (0.187 acres) |
| Street Address | 1557 EMERALD LN |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-4044 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR1 |
| Legal Description | TR=52228 LOT 35 |
| Legal Subdivision | 52228 |
| Legal Tract | 52228 |
| Legal Block | 3 |
| Legal Lot Number | 35 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3015 |
| Census Tract | 408707 |
Source: Los Angeles County records, as of August 25, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 1557 EMERALD LN, DIAMOND BAR, CA 91765-4044 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 31, 1998 · Amount on Record |
| Deed Sale | Dec 31, 1998 · Amount on Record |
| Deed Document Number | 19982376361 |
| Last Transfer Date | Apr 15, 2010 |
| Transfer Doc | 0000949243 |
| Record Updated | Oct 29, 2026 |
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Diamond Bar City |
| Unified School District | Walnut Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $788,316 (+2%) Land $287,822 Building $500,494 | |
| 2025 | $10,269.00 (+9.24%) | $772,880 (+4.04%) Land $282,179 Building $490,701 |
| 2023 | $9,400.00 (+2.11%) | $742,871 Land $271,223 Building $471,648 |
| 2022 | $9,206.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 30, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | WALNUT VALLEY WATER DISTRICT serves 100,941 people · EPA ID CA1910234 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jun 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 254 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Frontier, GeoLinks, Verizon.
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