Riverside County property record for 451 Massachusetts Ave, Riverside, CA 92507
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.75 ba · 1,618 sqft · built 1965 |
| Lot Size | 0.18 acres (7,841 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $991 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 251-113-031 |
| Primary APN | 251-113-031 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,618 sqft Living Area |
| Gross Area | 2,135 sqft |
| 1st Floor Area | 1,618 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1966 |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 7,841 sqft (0.18 acres) |
| Garage Type | Attached |
| Garage Area | 475 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Old Parcel Number | 122607037 |
|---|---|
| Street Address | 451 MASSACHUSETTS AVE |
| City | RIVERSIDE |
| State | CA |
| Zip | 92507-3102 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1065 |
| Legal Description | LOT 9 MB 054/093 TR 3335 |
| Legal Tract | 3335 |
| Legal Lot Number | 9 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | RIVERSIDE |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 42213 |
451 Massachusetts Ave, a single family home, is owned by an individual.
Source: Riverside County records, as of July 29, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 164, MESA, AZ 85211-0164 |
| 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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 451 Massachusetts Ave was $991.
Source: Riverside County assessment roll, as of July 29, 2026
| Type | Name |
|---|---|
| State | California |
| County | Riverside County |
| Municipality | Riverside City |
| Unified School District | Riverside Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $85,070 (+2%) Land $18,627 Building $66,443 | ||
| 2025 | $991.00 | $83,403 Land $18,262 Building $65,141 | |
| 2023 | $957.00 (+1.81%) | $80,165 Land $17,553 Building $62,612 | |
| 2022 | $940.00 | ||
| 2021 | $477,720 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 451 Massachusetts Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1995.
Source: FEMA National Flood Hazard Layer, effective October 14, 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 Policies | 1 in force |
| Nearby Flood Claims | 2 (1995–1998) |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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 451 Massachusetts Ave is moderate, ranking above 54% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 54% of the US · lower than 68% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within 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 | CITY OF RIVERSIDE serves 302,776 people · EPA ID CA3310031 |
|---|---|
| Water Source | Groundwater influenced by surface water |
| Lead | 1 ppb (2023–2025) 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 444 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: GeoLinks.
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