12139 RIVERSIDE DR
Professional services building · Los Angeles · 91607
At a glance
12139 RIVERSIDE DR in Los Angeles, CA is listed on the Los Angeles County property roll as “Professional services building”, AIN 2356008010. The roll records 5,004 sq ft of building area, a 1954 build year and an assessed value of $238,864. 3 active business locations at this address appear in public records.
Public record — 3 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| EYEWAYS LLC | — | Sep 2020 | LA business tax registry | address match · high |
| 12139 RIVERSIDE LLC | — | Jan 2009 | LA business tax registry | address match · high |
| WARREN J REINGOLD MD AMC | — | Jan 1990 | LA business tax registry | address match · high |
Los Angeles County assessment roll
Parcel record
| Field | Value |
|---|---|
| AIN | 2356008010 |
| Site address | 12139 RIVERSIDE DR |
| Land use (DOR) | 1900 — Professional services building |
| Building area (actual) | 5,004 sq ft |
| Floors / units / buildings | — / — / 1 |
| Lot size | — |
| Year built | 1954 |
| Zoning (primary) | — |
| Land value | $91,789 |
| Building value | — |
| Total assessed value | $238,864 |
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
- 12139 RIVERSIDE DR
- City
- Los Angeles
- ZIP
- 91607
- Coordinates
- 34.15793, -118.39801
Within ~650 m
Nearby office buildings
- 4705 LAUREL CANYON BLVD11 tenants
38,000 sq ft · 1987
- 12021 RIVERSIDE DR2 tenants
17,947 sq ft · 1953
- 4741 LAUREL CANYON BLVD17 tenants
10,767 sq ft · 1960
- 12034 RIVERSIDE DR2 tenants
8,255 sq ft · 1960
- 12155 RIVERSIDE DR4 tenants
6,012 sq ft · 1967
- 12030 RIVERSIDE DR5 tenants
5,316 sq ft · 1962
How does 12139 RIVERSIDE DR compare with other Los Angeles office buildings?
At 5,004 sq ft, 12139 RIVERSIDE DR is about 74% 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 $48 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 12139 RIVERSIDE DR 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 2356008010 as “Professional Building” (use code 1900). 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 12139 RIVERSIDE DR?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 12139 RIVERSIDE DR?
3 active business locations at this building appear in Los Angeles County public records, including EYEWAYS LLC, 12139 RIVERSIDE LLC, WARREN J REINGOLD MD AMC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 12139 RIVERSIDE DR?
The Los Angeles County roll records 5,004 sq ft of building area, a build year of 1954.
What is the assessed value of 12139 RIVERSIDE DR?
$238,864 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 12139 RIVERSIDE DR?
AIN 2356008010, site address 12139 RIVERSIDE DR, Los Angeles. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 12139 RIVERSIDE DR
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 2356008010.
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, “12139 RIVERSIDE DR, Los Angeles, CA (AIN 2356008010)”, https://buildingcensus.com/offices/la/office-building-aaf64330 (data as of September 20, 2026).