3770 W AVENUE 40
Professional services building · Los Angeles · 90065
At a glance
3770 W AVENUE 40 in Los Angeles, CA is listed on the Los Angeles County property roll as “Professional services building”, AIN 5472001057. The roll records 4,628 sq ft of building area, a 1957 build year and an assessed value of $2,421,028.
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 | 5472001057 |
| Site address | 3770 W AVENUE 40 |
| Land use (DOR) | 1920 — Professional services building |
| Building area (actual) | 4,628 sq ft |
| Floors / units / buildings | — / 4 / 2 |
| Lot size | — |
| Year built | 1957 |
| Zoning (primary) | — |
| Land value | $1,347,756 |
| Building value | — |
| Total assessed value | $2,421,028 |
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
- 3770 W AVENUE 40
- City
- Los Angeles
- ZIP
- 90065
- Coordinates
- 34.11983, -118.22841
Within ~650 m
Nearby office buildings
- 4005 VERDUGO RD0 tenants
7,685 sq ft · 1950
- 3950 EAGLE ROCK BLVD2 tenants
6,300 sq ft · 1958
- 3920 EAGLE ROCK BLVD7 tenants
4,088 sq ft · 1950
- 4254 EAGLE ROCK BLVD3 tenants
3,994 sq ft · 1981
- 4210 EAGLE ROCK BLVD8 tenants
3,986 sq ft · 1994
- 4305 EAGLE ROCK BLVD2 tenants
3,768 sq ft · 1921
How does 3770 W AVENUE 40 compare with other Los Angeles office buildings?
At 4,628 sq ft, 3770 W AVENUE 40 is about 76% smaller than 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 $523 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 3770 W AVENUE 40 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 “Professional Building” mean for this parcel?
The Los Angeles County roll classifies AIN 5472001057 as “Professional Building” (use code 1920). 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 3770 W AVENUE 40?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 3770 W AVENUE 40?
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 3770 W AVENUE 40?
The Los Angeles County roll records 4,628 sq ft of building area, a build year of 1957.
What is the assessed value of 3770 W AVENUE 40?
$2,421,028 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 3770 W AVENUE 40?
AIN 5472001057, site address 3770 W AVENUE 40, Los Angeles. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 3770 W AVENUE 40
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 5472001057.
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, “3770 W AVENUE 40, Los Angeles, CA (AIN 5472001057)”, https://buildingcensus.com/offices/la/office-building-bbe83d20 (data as of September 20, 2026).