BuildingCensus

123 S ALVARADO ST

Professional services building · Los Angeles · 90057

At a glance

123 S ALVARADO ST in Los Angeles, CA is listed on the Los Angeles County property roll as “Professional services building”, AIN 5154008010. The roll records 19,238 sq ft of building area, a 1971 build year and an assessed value of $5,276,992. 1 active business locations at this address appear in public records.

Active records here
1
business-tax + registry entities
Building area
19,238
sq ft (county roll)
Floors
—
county roll
Year built
1971
vintage
Assessed value
$5.3M
current roll
Assessed / sq ft
$274
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

Public record — 1 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
CLINICA MSR OSCAR A ROMERO/C—Jul 1983LA business tax registryaddress match · high

Los Angeles County assessment roll

Parcel record

FieldValue
AIN5154008010
Site address123 S ALVARADO ST
Land use (DOR)1900 — Professional services building
Building area (actual)19,238 sq ft
Floors / units / buildings— / — / 1
Lot size—
Year built1971
Zoning (primary)—
Land value$2,833,078
Building value—
Total assessed value$5,276,992

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
123 S ALVARADO ST
City
Los Angeles
ZIP
90057
Coordinates
34.06611, -118.27110

Within ~650 m

Nearby office buildings

How does 123 S ALVARADO ST compare with other Los Angeles office buildings?

At 19,238 sq ft, 123 S ALVARADO ST is roughly 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 $274 per square foot of building area, against $306 across all office floor area on the roll.

Does the owner of 123 S ALVARADO 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 “Professional Building” mean for this parcel?

The Los Angeles County roll classifies AIN 5154008010 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 123 S ALVARADO ST?

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

What companies have offices at 123 S ALVARADO ST?

1 active business locations at this building appear in Los Angeles County public records, including CLINICA MSR OSCAR A ROMERO/C. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 123 S ALVARADO ST?

The Los Angeles County roll records 19,238 sq ft of building area, a build year of 1971.

What is the assessed value of 123 S ALVARADO ST?

$5,276,992 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.

What is the AIN for 123 S ALVARADO ST?

AIN 5154008010, site address 123 S ALVARADO ST, Los Angeles. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).

More around 123 S ALVARADO 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 5154008010.

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, “123 S ALVARADO ST, Los Angeles, CA (AIN 5154008010)”, https://buildingcensus.com/offices/la/office-building-b59d2a12 (data as of September 20, 2026).