San Diego County property record for 10421 del Rio Rd, Spring Valley, CA 91978
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 764 sqft · built 1942 |
| Lot Size | 0.248 acres (10,800 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $239,000 (Nov 2008) |
| Tax Bill | $4,231 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 505-101-64-00 |
| Primary APN | 505-101-64-00 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 764 sqft Living Area |
| Year Built | Built 1942 |
|---|---|
| Effective Year Built | Effective 1942 |
| Exterior Material | Block |
| Construction Type | Frame |
| Lot Area | 10,800 sqft (0.248 acres) |
| View / Lot | Good |
| Garage Type | Carport |
| Carport | Carport |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Floor/Wall Furnace |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Old Parcel Number | 5051021000 |
|---|---|
| Street Address | 10421 DEL RIO RD |
| City | SPRING VALLEY |
| State | CA |
| Zip | 91978-1010 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RS |
| Legal Description | LOT 81 TR 002246 |
| Legal Subdivision | MOUNT HELIX HIGHLANDS |
| Legal Tract | 002246 |
| Legal Block | 1 |
| Legal Lot Number | 81 |
| Jurisdiction | SAN DIEGO CA |
| Township / Civil Division | SAN DIEGO |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 13505 |
10421 del Rio Rd is owned and occupied by two individuals who bought it in November 2008.
Source: San Diego County records, as of July 28, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 10421 DEL RIO RD, SPRING VALLEY, CA 91978-1010 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Nov 13, 2008 · Amount on File |
| Deed Sale | Nov 13, 2008 · Amount on File |
| Prior Sale | Aug 8, 2008 · Amount on File |
| Deed Document Number | 2008591454 |
| Prior Transfer Date | Jun 9, 1994 |
| Prior Transfer Doc | 0000372981 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 10421 del Rio Rd was $4,231.
Source: San Diego County assessment roll, as of July 28, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Diego County |
| Secondary School District | Grossmont Union High School District (09 - 12) |
| Elementary School District | La Mesa-Spring Valley School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $302,090 (+2%) Land $197,018 Building $105,072 | |
| 2025 | $4,231.00 | $296,167 Land $193,155 Building $103,012 |
| 2023 | $3,920.00 (+1.79%) | $284,668 Land $185,655 Building $99,013 |
| 2022 | $3,851.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10421 del Rio Rd in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 3, 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 |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 3 in force |
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 10421 del Rio Rd is low, with less than 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 94% of the US · lower than 96% 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 | HELIX WATER DISTRICT serves 277,918 people · EPA ID CA3710010 |
|---|---|
| Water Source | Surface water |
| 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 397 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Cox Communications Cable · Fiber in parts of the area | 2,000 / 100 |
May also be available: GeoLinks, T-Mobile, Verizon.
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