Riverside County property record for 18903 Harness Rd, Riverside, CA 92504 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.75 ba · 2,191 sqft · built 1979 |
| Lot Size | 2.48 acres (108,029 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $6,531 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 285-310-014 |
| Primary APN | 285-310-014 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 2,191 sqft Living Area |
| Gross Area | 3,116 sqft |
| 1st Floor Area | 2,191 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1980 |
| Construction Type | Wood |
| Roof Material | Tile |
| Lot Area | 108,029 sqft |
| Garage Type | Attached |
| Garage Area | 780 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Street Address | 18903 HARNESS RD |
|---|---|
| City | RIVERSIDE |
| State | CA |
| Zip | 92504-9645 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 2.48 ACRES NET IN LOT 45 MB 095/062 TR 8929 |
| Legal Subdivision | TRACT NO. 8929 |
| Legal Tract | 8929 |
| Legal Lot Number | 45 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | LAKE MATHEWS |
| Census Block Group | 3 |
| Census Block | 3016 |
| Census Tract | 42008 |
Source: Riverside County records · APN 285-310-014
Assessment roll updated July 29, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 18903 HARNESS RD, RIVERSIDE, CA 92504-9645 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Aug 26, 2024 |
| Transfer Doc | 0000256509 |
| Record Updated | Sep 20, 2026 |
Source: Riverside County records · Assessment roll updated July 29, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Riverside County |
| Unified School District | Riverside Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $597,810 (+2%) Land $177,566 Building $420,244 | ||
| 2025 | $6,531.00 (+4.2%) | $586,089 (+4.04%) Land $174,085 Building $412,004 | |
| 2023 | $6,268.00 (+1.99%) | $563,332 Land $167,326 Building $396,006 | |
| 2022 | $6,146.00 | ||
| 2021 | $673,650 |
Source: FEMA National Flood Hazard Layer, Riverside County (06065C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060650420083, 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 | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | High above 80% of the US · above 58% of California |
|---|---|
| Wildfire Likelihood | About 1 in 177 per year |
| Exposure | Direct burnable vegetation at the parcel |
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 79 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Spectrum | Cable | 1,000 / 1,000 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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