San Diego County property record for 4318 Mission Ave, Oceanside, CA 92057
| Property Type | Medical Building |
|---|---|
| Details | 4,171 sqft · built 2008 |
| Lot Size | 2.36 acres (103,237 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $6,369,000 (Jan 2012) |
| Tax Bill | $3,260 (2025) |
| Deeds & Mortgages | Aug 2017 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 158-101-42-00 |
| Primary APN | 158-101-42-00 |
|---|---|
| Alternative APN |
|
| Building Area | 4,171 sqft Total Area |
|---|---|
| Gross Area | 34,171 sqft |
| Year Built | Built 2008 |
|---|---|
| Effective Year Built | Effective 2008 |
| Lot Area | 103,237 sqft |
| Old Parcel Number | 1581013900 |
|---|---|
| Street Address | 4318 MISSION AVE |
| City | OCEANSIDE |
| State | CA |
| Zip | 92057-6541 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Medical Building |
| Local Zoning Code | CS-HO-H |
| Legal Description | LOT 1 TR 015623 |
| Legal Subdivision | OLD GROVE MEDICAL OFFICE |
| Legal Tract | 015623 |
| Legal Block | 2 |
| Legal Lot Number | 1 |
| Jurisdiction | SAN DIEGO CA |
| Township / Civil Division | OCEANSIDE-ESCONDIDO |
| Census Block Group | 2 |
| Census Block | 2027 |
| Census Tract | 18521 |
4318 Mission Ave, a commercial property, is owned by a company that bought it in January 2012 and is owner-occupied.
Source: San Diego County records, as of July 28, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 10140 CAMPUS POINT DR, AX265, SAN DIEGO, CA 92121-1520 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
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 | Jan 25, 2012 · Amount on File |
| Deed Sale | Jan 25, 2012 · Amount on File |
| Prior Sale | Apr 16, 2001 · Amount on File |
| Deed Document Number | 201241569 |
| Prior Transfer Date | Apr 29, 2003 |
| Prior Transfer Doc | 0000505105 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN DIEGO CA |
| Property Address | 4318 MISSION AVE, OCEANSIDE, CA 92057-6541 |
| Document Number | 0000397425 |
| Instrument Date | Aug 8, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Sep 6, 2017 |
| Title Company | ATTORNEY ONLY |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 50 E 42ND ST #901 NEW YORK NY 100175427, 901, NEW YORK, NY 10017-5427 |
The 2025 property tax bill for 4318 Mission Ave was $3,260 with an additional exemption.
Source: San Diego County assessment roll, as of July 28, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Diego County |
| Municipality | Oceanside City |
| Unified School District | Oceanside Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $13,796,998 (+2%) Land $2,203,145 Building $11,593,853 | |
| 2025 | $3,260.00 | $13,526,470 Land $2,159,947 Building $11,366,523 |
| 2023 | $3,205.00 (+0.41%) | $13,001,223 Land $2,076,075 Building $10,925,148 |
| 2022 | $3,192.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4318 Mission Ave in Zone X, an area of moderate 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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 16 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 16 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.
The area around 4318 Mission Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 OCEANSIDE serves 174,340 people · EPA ID CA3710014 |
|---|---|
| Water Source | Purchased surface water from several systems |
| 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 829 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Cox Communications Cable · Fiber in parts of the area | 2,000 / 100 |
| Starlink Satellite | 280 / 30 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: GeoLinks, T-Mobile, Verizon.
5G (outdoors only) and 4G LTE
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