San Diego County property record for 1644 Ave Guillermo, Oceanside, CA 92056
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,624 sqft · built 1990 |
| Lot Size | 0.147 acres (6,420 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $155,000 (Mar 1993) |
| Tax Bill | $3,060 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 161-621-03-00 |
| Primary APN | 161-621-03-00 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,624 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Roof Material | Tile |
| Lot Area | 6,420 sqft (0.147 acres) |
| Garage Type | Carport |
| Carport | Carport |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1644 AVENIDA GUILLERMO |
|---|---|
| City | OCEANSIDE |
| State | CA |
| Zip | 92056-6532 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | PD-1 (Res) |
| Legal Description | LOT 16 TR 012282 |
| Legal Subdivision | RANCHO DEL ORO INDUST PARK |
| Legal Tract | 012282 |
| Legal Block | 2 |
| Legal Lot Number | 16 |
| Jurisdiction | SAN DIEGO CA |
| Township / Civil Division | OCEANSIDE-ESCONDIDO |
| Census Block Group | 2 |
| Census Block | 2014 |
| Census Tract | 19301 |
Source: San Diego County records · APN 161-621-03-00
Assessment roll updated July 21, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1644 AVENIDA GUILLERMO, OCEANSIDE, CA 92056-6532 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 10, 1993 · Amount on Record |
| Deed Sale | Mar 10, 1993 · Amount on Record |
| Prior Sale | Oct 29, 1991 · Amount on Record |
| Deed Document Number | 1993147938 |
| Last Transfer Date | Feb 11, 2003 |
| Transfer Doc | 0000181606 |
| Record Updated | Sep 20, 2026 |
Source: San Diego County records · Assessment roll updated July 21, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | San Diego County |
| Municipality | Oceanside City |
| Unified School District | Vista Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $281,742 (+2%) Land $194,505 Building $87,237 | |
| 2025 | $3,060.00 (+8.66%) Homeowner's exemption | $276,219 (+4.04%) Land $190,692 Building $85,527 |
| 2023 | $2,816.00 (+0.25%) Homeowner's exemption | $265,494 Land $183,288 Building $82,206 |
| 2022 | $2,809.00 |
Source: FEMA National Flood Hazard Layer as of September 3, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Cox Communications Cable · Fiber in parts of the area | 2,000 / 100 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: California Internet, T-Mobile USA, Verizon.
Based on FCC filings for 734 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF OCEANSIDE serves 174,340 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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