300 S DOUGLAS ST
Office building — one story · El Segundo · 90245
At a glance
300 S DOUGLAS ST in El Segundo, CA is listed on the Los Angeles County property roll as “Office building — one story”, AIN 4138008021. The roll records 296,083 sq ft of building area, a 1975 build year and an assessed value of $60,415,801.
Public record — 0 matched business locations
Tenants & business locations
No active business locations at this address appear in the public records ingested so far. That is a statement about the records, not the building: tenants without a county business-tax receipt or a Florida registration at this address are invisible to public data.
Los Angeles County assessment roll
Parcel record
| Field | Value |
|---|---|
| AIN | 4138008021 |
| Site address | 300 S DOUGLAS ST |
| Land use (DOR) | 1706 — Office building — one story |
| Building area (actual) | 296,083 sq ft |
| Floors / units / buildings | — / — / 5 |
| Lot size | — |
| Year built | 1975 |
| Zoning (primary) | — |
| Land value | $5,145,233 |
| Building value | — |
| Total assessed value | $60,415,801 |
Recorded owner (assessment roll)
No owning organisation shown. Where the county roll names a private individual, the name and mailing address are not published here.
Location
- Address
- 300 S DOUGLAS ST
- City
- El Segundo
- ZIP
- 90245
- Coordinates
- 33.91311, -118.38141
Within ~650 m
Nearby office buildings
- 2350 E EL SEGUNDO BLVD1 tenants
573,791 sq ft · 1963
- 201 N DOUGLAS ST0 tenants
345,756 sq ft · 1981
- 555 S AVIATION BLVD0 tenants
257,506 sq ft · 1966
- 200 N AVIATION BLVD0 tenants
216,145 sq ft · 1959
- 2383 UTAH AVE0 tenants
203,587 sq ft · 1968
- 2260 E EL SEGUNDO BLVD1 tenants
148,412 sq ft · 1979
How does 300 S DOUGLAS ST compare with other Los Angeles office buildings?
At 296,083 sq ft, 300 S DOUGLAS ST is about 15 times the size of the average office building on the Los Angeles County roll, which comes to 19,230 sq ft across 19,626 buildings.
Its assessed value works out to $204 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 300 S DOUGLAS ST hold other Los Angeles office property?
Los Angeles County's published roll does not include owner names, so no owner is shown for any parcel in this metro.
What does “Office Building” mean for this parcel?
The Los Angeles County roll classifies AIN 4138008021 as “Office Building” (use code 1706). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 300 S DOUGLAS ST?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 300 S DOUGLAS ST?
No business locations at this building appear in the public records ingested so far — no licence, tax or registry record currently lists this address; that is a gap in the record, not proof the building is empty.
How big is 300 S DOUGLAS ST?
The Los Angeles County roll records 296,083 sq ft of building area, a build year of 1975.
What is the assessed value of 300 S DOUGLAS ST?
$60,415,801 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 300 S DOUGLAS ST?
AIN 4138008021, site address 300 S DOUGLAS ST, El Segundo. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 300 S DOUGLAS ST
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Los Angeles County — County Assessor annual roll (use codes, areas, values; California law redacts owner names from bulk data) and the city Office of Finance active-business registry, whose addresses carry floor and suite numbers.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
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Dataset updated . Source: Los Angeles County assessment roll, AIN 4138008021.
About this data
Source: County Assessor annual roll (Los Angeles County), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “300 S DOUGLAS ST, El Segundo, CA (AIN 4138008021)”, https://buildingcensus.com/offices/la/office-building-1137629f (data as of September 20, 2026).