12840 RIVERSIDE DR
Professional services building · Los Angeles · 91607
At a glance
12840 RIVERSIDE DR in Los Angeles, CA is listed on the Los Angeles County property roll as “Professional services building”, AIN 2357033012. The roll records 36,612 sq ft of building area, a 1965 build year and an assessed value of $9,523,021. 29 active business locations at this address appear in public records.
Derived from suite and floor strings in the occupancy records
Which floors show activity
- 54 on record
- 45 on record
- 33 on record
- 26 on record
- 12 on record
Floors are read from suite numbers on Los Angeles County business records (suite 4900 → floor 49). A floor with no record is not necessarily vacant — it may be mechanical, occupied by the owner, or let to a business whose receipt carries no suite. Receipts also lag reality by months. This shows where the public record places businesses, not a rent roll or an availability report. A stretch of quiet floors is not contiguous space for rent — it is contiguous silence in the record, which is the closest thing the public record has to that question and worth exactly what it costs to check.
Public record — 29 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| ONE DENTAL STUDIO CITY PC | OFFICE #506 | Dec 2025 | LA business tax registry | address match · high |
| BRUCE ROGER | APT #402 | Aug 2025 | LA business tax registry | address match · high |
| LA PODIATRY CENTER INC | SUITE #204 | Dec 2024 | LA business tax registry | address match · high |
| HALL DENTAL GROUP STUDIO CITY PC | UNIT #508 | Sep 2024 | LA business tax registry | address match · high |
| VALENTINA BABUCHYAN DDS INC | SUITE #206 | Feb 2023 | LA business tax registry | address match · high |
| MENACHEM PSYCHOTHERAPY GROUP INC | SUITE #208 | Feb 2023 | LA business tax registry | address match · high |
| HEATHER WEINGOLD LICENSED CLINICAL WORKER CORP. | SUITE #208 | Dec 2022 | LA business tax registry | address match · high |
| BEVERLY HILLS PEDIATRICS, INC. | SUITE #210 | Jan 2020 | LA business tax registry | address match · high |
| MICHAEL KERENDIAN | UNIT #508 | Sep 2018 | LA business tax registry | address match · high |
| ANGEL LONGEVITY INTERNATIONAL LLC | SUITE #402 | Jan 2018 | LA business tax registry | address match · high |
| USA VASCULAR CENTERS OF LOS ANGELES PC | SUITE #300 A | Jan 2017 | LA business tax registry | address match · high |
| JOAN BORIS | 200 | Mar 2013 | LA business tax registry | address match · high |
| VALLEY VILLAGE VEIN CLINIC PC | SUITE #300 | Dec 2012 | LA business tax registry | address match · high |
| JAMIE ELIZABETH SANDS, DDS PROFESSIONAL CORPORATION | SUITE #100 | Oct 2011 | LA business tax registry | address match · high |
| MARCELO SANCHEZ | UNIT #508 | Nov 2007 | LA business tax registry | address match · high |
| Ace Parking Management Incvia ACE PARKING MANAGEMENT INC | — | Aug 2007 | LA business tax registry | address match · high |
| 12840 MOB LLC | — | Feb 2007 | LA business tax registry | address match · high |
| ADVANCED MEDICAL THERMOGRAPHY INC | 202 | May 2006 | LA business tax registry | address match · high |
| MELINA B JAMPOLIS MD A PROFESSIONAL CORPORATION | SUITE #401 | Jan 2006 | LA business tax registry | address match · high |
| SALOMON MAYA DMD, INC., A PROFESSIONAL CORPORATION | 404 | Jan 2003 | LA business tax registry | address match · high |
| ALLEN ZEBRACK DDS | UNIT #406 | Jun 1999 | LA business tax registry | address match · high |
| ANGEL LONGEVITY MEDICAL CENTER, INC | 402 | Nov 1994 | LA business tax registry | address match · high |
| RETINA-VITREOUS ASSOCIATES MEDICAL GROUP | SUITE #333 | Aug 1992 | LA business tax registry | address match · high |
| MOHAMMAD BAGHER BERT JAFARI | SUITE #400 | Jul 1991 | LA business tax registry | address match · high |
| JONATHAN M GIDAN DDS | 508 | Jan 1991 | LA business tax registry | address match · high |
| MARGARET KRPAN,DC | SUITE #202 | Jan 1990 | LA business tax registry | address match · high |
| PETER J WEINGOLD MD APC | 208 | Jun 1981 | LA business tax registry | address match · high |
| BARRY D FEINSTEIN DPM | 204 | Dec 1980 | LA business tax registry | address match · high |
| PANORAMA WOODMAN CENTRE LLC | UNIT #103 | Jan 1970 | LA business tax registry | address match · high |
Los Angeles County assessment roll
Parcel record
| Field | Value |
|---|---|
| AIN | 2357033012 |
| Site address | 12840 RIVERSIDE DR |
| Land use (DOR) | 1900 — Professional services building |
| Building area (actual) | 36,612 sq ft |
| Floors / units / buildings | — / — / 1 |
| Lot size | — |
| Year built | 1965 |
| Zoning (primary) | — |
| Land value | $1,707,571 |
| Building value | — |
| Total assessed value | $9,523,021 |
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
- 12840 RIVERSIDE DR
- City
- Los Angeles
- ZIP
- 91607
- Coordinates
- 34.15732, -118.41293
Within ~650 m
Nearby office buildings
- 12660 RIVERSIDE DR17 tenants
48,504 sq ft · 1992
- 12925 RIVERSIDE DR12 tenants
38,994 sq ft · 1986
- 12626 RIVERSIDE DR29 tenants
33,732 sq ft · 1975
- 12800 RIVERSIDE DR8 tenants
17,417 sq ft · 1985
- 12650 RIVERSIDE DR8 tenants
16,280 sq ft · 1973
- 12722 RIVERSIDE DR27 tenants
14,342 sq ft · 1968
How does 12840 RIVERSIDE DR compare with other Los Angeles office buildings?
At 36,612 sq ft, 12840 RIVERSIDE DR is about twice 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 $260 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 12840 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 2357033012 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 12840 RIVERSIDE DR?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 12840 RIVERSIDE DR?
29 active business locations at this building appear in Los Angeles County public records, including ONE DENTAL STUDIO CITY PC, BRUCE ROGER, LA PODIATRY CENTER INC, HALL DENTAL GROUP STUDIO CITY PC, VALENTINA BABUCHYAN DDS INC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 12840 RIVERSIDE DR?
The Los Angeles County roll records 36,612 sq ft of building area, a build year of 1965.
What is the assessed value of 12840 RIVERSIDE DR?
$9,523,021 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 12840 RIVERSIDE DR?
AIN 2357033012, site address 12840 RIVERSIDE DR, Los Angeles. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 12840 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.
Working with Los Angeles office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
Dataset updated . Source: Los Angeles County assessment roll, AIN 2357033012.
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, “12840 RIVERSIDE DR, Los Angeles, CA (AIN 2357033012)”, https://buildingcensus.com/offices/la/office-building-50023d71 (data as of September 20, 2026).