Los Angeles County property record for 23854 Decorah Rd, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,240 sqft · built 1964 |
| Lot Size | 0.283 acres (12,335 sqft) |
| Owner | Individual Name on File |
| Last Sale | $213,000 (May 1994) |
| Tax Bill | $5,461 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8703-003-042 |
| Primary APN | 8703-003-042 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 2,240 sqft Living Area |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Construction Type | Wood |
| Lot Area | 12,335 sqft (0.283 acres) |
| Heating System | Central |
|---|
| Street Address | 23854 DECORAH RD |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-1405 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR18000* |
| Legal Description | LOT 132 TR NO 27530 AND POR OF SEC 3 T2S R9W |
| Legal Range | 09W |
| Legal Township | 02S |
| Legal Section | 03 |
| Legal Subdivision | 27530 |
| Legal Tract | 27530 |
| Legal Block | 3 |
| Legal Lot Number | 132 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 403316 |
23854 Decorah Rd is owned and occupied by an individual who bought it in May 1994.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 23854 DECORAH RD, DIAMOND BAR, CA 91765-1405 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 31, 1994 · Amount on File |
| Deed Sale | May 31, 1994 · Amount on File |
| Deed Document Number | 19941046678 |
| Prior Transfer Date | May 24, 1994 |
| Prior Transfer Doc | 0001046677 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 23854 Decorah Rd was $5,461.
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 | Pomona Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $369,239 (+2%) Land $209,064 Building $160,175 | |
| 2025 | $5,461.00 | $362,000 Land $204,965 Building $157,035 |
| 2023 | $4,952.00 (+1.58%) | $347,945 Land $197,007 Building $150,938 |
| 2022 | $4,875.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 23854 Decorah Rd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1980.
Source: FEMA National Flood Hazard Layer, effective September 30, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1980) |
| Most Recent Claim | Feb 1980 · rainfall accumulation |
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.
Wildfire risk around 23854 Decorah Rd is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| 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 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 519 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Frontier, GeoLinks, T-Mobile.
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