1230 ROSECRANS AVE
Office building — one story · Manhattan Beach · 90266
At a glance
1230 ROSECRANS AVE in Manhattan Beach, CA is listed on the Los Angeles County property roll as “Office building — one story”, AIN 4138018021. The roll records 319,589 sq ft of building area, a 1984 build year and an assessed value of $116,402,222. 9 active business locations at this address appear in public records.
Derived from suite and floor strings in the occupancy records
Which floors show activity
- 61 on record
- 53 on record
- 4no record
- 34 on record
- 2no record
- 1no 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 — 9 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| THE HOSPITAL EQUIPMENT COMPANY LLC | SUITE #300 | Feb 2023 | LA business tax registry | address match · high |
| SHINE INVEST LLC | SUITE #300 | Apr 2021 | LA business tax registry | address match · high |
| CROSBY ROW | SUITE #530 | Jan 2020 | LA business tax registry | address match · high |
| ENHANCE HCM | SUITE #530 | Jan 2020 | LA business tax registry | address match · high |
| UMBRELLA FINANCIAL SOLUTIONS | SUITE #300 | Jan 2019 | LA business tax registry | address match · high |
| NEUROEDGE INC | 300 | Jan 2015 | LA business tax registry | address match · high |
| COAST TO COAST ATM LLC | UNIT #300 | Jun 2013 | LA business tax registry | address match · high |
| HUNTER BROOK INC | SUITE #620 | Mar 2012 | LA business tax registry | address match · high |
| ETONIEN LLC | SUITE #530 | Nov 2009 | LA business tax registry | address match · high |
Los Angeles County assessment roll
Parcel record
| Field | Value |
|---|---|
| AIN | 4138018021 |
| Site address | 1230 ROSECRANS AVE |
| Land use (DOR) | 1706 — Office building — one story |
| Building area (actual) | 319,589 sq ft |
| Floors / units / buildings | — / — / 1 |
| Lot size | — |
| Year built | 1984 |
| Zoning (primary) | — |
| Land value | $18,163,170 |
| Building value | — |
| Total assessed value | $116,402,222 |
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
- 1230 ROSECRANS AVE
- City
- Manhattan Beach
- ZIP
- 90266
- Coordinates
- 33.90120, -118.39193
Within ~650 m
Nearby office buildings
- 2101 ROSECRANS AVE2 tenants
532,660 sq ft · 1982
- 2145 PARK PL0 tenants
136,083 sq ft · 1970
- 1500 ROSECRANS AVE8 tenants
123,325 sq ft · 1982
- 2121 PARK PL1 tenants
113,907 sq ft · 1971
- 830 S NASH ST0 tenants
108,916 sq ft · 1980
- 841 APOLLO ST1 tenants
108,372 sq ft · 1983
How does 1230 ROSECRANS AVE compare with other Los Angeles office buildings?
At 319,589 sq ft, 1230 ROSECRANS AVE is about 17 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 $364 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 1230 ROSECRANS 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 “Office Building” mean for this parcel?
The Los Angeles County roll classifies AIN 4138018021 as “Office Building” (use code 1706). 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 1230 ROSECRANS AVE?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 1230 ROSECRANS AVE?
9 active business locations at this building appear in Los Angeles County public records, including THE HOSPITAL EQUIPMENT COMPANY LLC, SHINE INVEST LLC, CROSBY ROW, ENHANCE HCM, UMBRELLA FINANCIAL SOLUTIONS. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1230 ROSECRANS AVE?
The Los Angeles County roll records 319,589 sq ft of building area, a build year of 1984.
What is the assessed value of 1230 ROSECRANS AVE?
$116,402,222 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 1230 ROSECRANS AVE?
AIN 4138018021, site address 1230 ROSECRANS AVE, Manhattan Beach. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 1230 ROSECRANS 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 4138018021.
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, “1230 ROSECRANS AVE, Manhattan Beach, CA (AIN 4138018021)”, https://buildingcensus.com/offices/la/office-building-5ddd3236 (data as of September 20, 2026).