BuildingCensus

19860 PLUMMER ST

Office building — one story · Chatsworth · 91311

At a glance

19860 PLUMMER ST in Chatsworth, CA is listed on the Los Angeles County property roll as “Office building — one story”, AIN 2761040029. The roll records 89,496 sq ft of building area, a 1985 build year and an assessed value of $7,062,601. 3 active business locations at this address appear in public records.

Active records here
3
business-tax + registry entities
Building area
89,496
sq ft (county roll)
Floors
—
county roll
Year built
1985
vintage
Assessed value
$7.1M
current roll
Assessed / sq ft
$79
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

Public record — 3 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
LANGUAGEARTS LLCSUITE #200Mar 2022LA business tax registryaddress match · high
CELLTRON INC.—Jan 2018LA business tax registryaddress match · high
CELLTRON WEST LLC—Dec 2012LA business tax registryaddress match · high

Los Angeles County assessment roll

Parcel record

FieldValue
AIN2761040029
Site address19860 PLUMMER ST
Land use (DOR)1703 — Office building — one story
Building area (actual)89,496 sq ft
Floors / units / buildings— / — / 1
Lot size—
Year built1985
Zoning (primary)—
Land value$2,414,562
Building value—
Total assessed value$7,062,601

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
19860 PLUMMER ST
City
Chatsworth
ZIP
91311
Coordinates
34.24193, -118.56599

Within ~650 m

Nearby office buildings

How does 19860 PLUMMER ST compare with other Los Angeles office buildings?

At 89,496 sq ft, 19860 PLUMMER ST is about 5 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 $79 per square foot of building area, against $306 across all office floor area on the roll.

Does the owner of 19860 PLUMMER 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 2761040029 as “Office Building” (use code 1703). 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 19860 PLUMMER ST?

Los Angeles County's published roll does not include owner names, so no owner is shown.

What companies have offices at 19860 PLUMMER ST?

3 active business locations at this building appear in Los Angeles County public records, including LANGUAGEARTS LLC, CELLTRON INC., CELLTRON WEST LLC. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 19860 PLUMMER ST?

The Los Angeles County roll records 89,496 sq ft of building area, a build year of 1985.

What is the assessed value of 19860 PLUMMER ST?

$7,062,601 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.

What is the AIN for 19860 PLUMMER ST?

AIN 2761040029, site address 19860 PLUMMER ST, Chatsworth. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).

More around 19860 PLUMMER 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 2761040029.

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, “19860 PLUMMER ST, Chatsworth, CA (AIN 2761040029)”, https://buildingcensus.com/offices/la/office-building-1973b9a3 (data as of September 20, 2026).