1550 W MANCHESTER AVE
Professional services building · Los Angeles · 90047
At a glance
1550 W MANCHESTER AVE in Los Angeles, CA is listed on the Los Angeles County property roll as “Professional services building”, AIN 6037001051. The roll records 15,076 sq ft of building area, a 2010 build year and an assessed value of $5,874,839. 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 |
|---|---|---|---|---|
| LAZ KARP ASSOCIATES LLC | — | Feb 2022 | LA business tax registry | address match · high |
| SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP | — | Apr 2011 | LA business tax registry | address match · high |
| KAISER FOUNDATION HEALTH PLAN INC | FLOOR #1 | Nov 2010 | LA business tax registry | address match · high |
Los Angeles County assessment roll
Parcel record
| Field | Value |
|---|---|
| AIN | 6037001051 |
| Site address | 1550 W MANCHESTER AVE |
| Land use (DOR) | 1900 — Professional services building |
| Building area (actual) | 15,076 sq ft |
| Floors / units / buildings | — / — / 1 |
| Lot size | — |
| Year built | 2010 |
| Zoning (primary) | — |
| Land value | $2,060,056 |
| Building value | — |
| Total assessed value | $5,874,839 |
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
- 1550 W MANCHESTER AVE
- City
- Los Angeles
- ZIP
- 90047
- Coordinates
- 33.95968, -118.30406
Within ~650 m
Nearby office buildings
- 1704 W MANCHESTER AVE80 tenants
19,936 sq ft · 1958
- 8732 S WESTERN AVE1 tenants
5,280 sq ft · 1961
- 8701 S WESTERN AVE1 tenants
4,777 sq ft · 1996
- 1328 W MANCHESTER AVE1 tenants
3,381 sq ft · 1970
- 8124 S WESTERN AVE1 tenants
3,150 sq ft · 1957
- 8481 S WESTERN AVE0 tenants
1,764 sq ft · 1950
How does 1550 W MANCHESTER AVE compare with other Los Angeles office buildings?
At 15,076 sq ft, 1550 W MANCHESTER AVE is about 22% 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 $390 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 1550 W MANCHESTER AVE 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 6037001051 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 1550 W MANCHESTER AVE?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 1550 W MANCHESTER AVE?
3 active business locations at this building appear in Los Angeles County public records, including LAZ KARP ASSOCIATES LLC, SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP, KAISER FOUNDATION HEALTH PLAN INC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1550 W MANCHESTER AVE?
The Los Angeles County roll records 15,076 sq ft of building area, a build year of 2010.
What is the assessed value of 1550 W MANCHESTER AVE?
$5,874,839 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 1550 W MANCHESTER AVE?
AIN 6037001051, site address 1550 W MANCHESTER AVE, Los Angeles. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 1550 W MANCHESTER AVE
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 6037001051.
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, “1550 W MANCHESTER AVE, Los Angeles, CA (AIN 6037001051)”, https://buildingcensus.com/offices/la/office-building-a23fe914 (data as of September 20, 2026).