440 E ROUTE 66
Office building — one story · Glendora · 91740
At a glance
440 E ROUTE 66 in Glendora, CA is listed on the Los Angeles County property roll as “Office building — one story”, AIN 8644003015. The roll records 10,339 sq ft of building area, a 1949 build year and an assessed value of $2,290,960. 1 active business locations at this address appear in public records.
Public record — 1 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| TRICERTUS, LLC | — | Apr 2017 | LA business tax registry | address match · high |
Los Angeles County assessment roll
Parcel record
| Field | Value |
|---|---|
| AIN | 8644003015 |
| Site address | 440 E ROUTE 66 |
| Land use (DOR) | 1710 — Office building — one story |
| Building area (actual) | 10,339 sq ft |
| Floors / units / buildings | — / — / 1 |
| Lot size | — |
| Year built | 1949 |
| Zoning (primary) | — |
| Land value | $1,440,954 |
| Building value | — |
| Total assessed value | $2,290,960 |
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
- 440 E ROUTE 66
- City
- Glendora
- ZIP
- 91740
- Coordinates
- 34.12835, -117.85889
Within ~650 m
Nearby office buildings
- 504 E ROUTE 660 tenants
14,495 sq ft · 2010
- 410 S GLENDORA AVE0 tenants
9,988 sq ft · 1965
- 315 E ROUTE 660 tenants
9,460 sq ft · 1989
- 541 S PASADENA AVE0 tenants
8,901 sq ft · 2004
- 100 W ROUTE 660 tenants
7,000 sq ft · 1976
- 614 S GLENDORA AVE0 tenants
5,982 sq ft · 2001
How does 440 E ROUTE 66 compare with other Los Angeles office buildings?
At 10,339 sq ft, 440 E ROUTE 66 is about half 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 $222 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 440 E ROUTE 66 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 8644003015 as “Office Building” (use code 1710). 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 440 E ROUTE 66?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 440 E ROUTE 66?
1 active business locations at this building appear in Los Angeles County public records, including TRICERTUS, LLC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 440 E ROUTE 66?
The Los Angeles County roll records 10,339 sq ft of building area, a build year of 1949.
What is the assessed value of 440 E ROUTE 66?
$2,290,960 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 440 E ROUTE 66?
AIN 8644003015, site address 440 E ROUTE 66, Glendora. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 440 E ROUTE 66
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 8644003015.
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, “440 E ROUTE 66, Glendora, CA (AIN 8644003015)”, https://buildingcensus.com/offices/la/office-building-1b1d5648 (data as of September 20, 2026).