Ventura County property record for 4583 Ish Dr, Simi Valley, CA 93063 · Last verified July 2026
| Property Type | Industrial > Light Industrial (10% Improved Office Space; Machine Shop) |
|---|---|
| Year Built | Built 2004 |
| Square Footage | 17,454 sqft Total Area |
| Lot Size | 28,683 sqft (0.659 acres) |
| Tax Bill | $33,389.00 (2025) |
| Primary APN | 644-0-190-525 |
|---|---|
| Alternative APN |
|
| Building Area | 17,454 sqft Total Area |
|---|---|
| Upper Floors | 3,259 sqft Upper Floors |
| Office | 4,527 sqft Office |
| Year Built | Built 2004 |
|---|---|
| Effective Year Built | Effective 2004 |
| Lot Area | 28,683 sqft (0.659 acres) |
| Lot Width | 82 ft Width |
| Old Parcel Number | 6440190435 |
|---|---|
| Street Address | 4583 ISH DR |
| City | SIMI VALLEY |
| State | CA |
| Zip | 93063-7667 |
| Property Usage | Industrial Property Usage |
| Type | Industrial > Light Industrial (10% Improved Office Space; Machine Shop) |
| Legal Description | LOT: D |
| Legal Subdivision | TRACT NO 5193 |
| Legal Block | 190 |
| Legal Lot Number | D |
| Jurisdiction | VENTURA CA |
| Minor Civil Division | SIMI VALLEY |
| Census Blockgroup | 3 |
| Census Block | 3002 |
| Census Tract | 8002 |
Source: Ventura County records · APN 644-0-190-525
Assessment roll updated July 15, 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 | Company Name on File |
|---|---|
| Mailing Address | PO BOX 1152, SAN FERNANDO, CA 91341-1152 |
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Refreshed | Sep 20, 2026 |
Source: Ventura County records · Assessment roll updated July 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Ventura County |
| Municipality | Simi Valley City |
| Unified School District | Simi Valley 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 | $3,066,151 (+2%) Land $568,710 Building $2,497,441 | |
| 2025 | $33,389.00 (+1.09%) | $3,006,031 (+4.04%) Land $557,559 Building $2,448,472 |
| 2024 | $33,030.00 (+6.16%) | |
| 2023 | $31,114.00 (-0.46%) | $2,889,304 Land $535,908 Building $2,353,396 |
| 2022 | $31,258.00 |
Source: FEMA National Flood Hazard Layer, Ventura County (06111C), updated September 30, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone AO sheet flow 1–3 ft |
|---|---|
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Special Flood Hazard Area | Yes |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Wildfire Risk | Moderate above 61% of the US · above 37% of California |
|---|---|
| Wildfire Likelihood | About 1 in 820 per year |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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