10 CONGRESS STREET
Professional services building · Pasadena · 91105
At a glance
10 CONGRESS STREET in Pasadena, CA is listed on the Los Angeles County property roll as “Professional services building”, AIN 5719027069. The roll records 61,840 sq ft of building area, a 1972 build year and an assessed value of $9,794,202.
Public record — 0 matched business locations
Tenants & business locations
No active business locations at this address appear in the public records ingested so far. That is a statement about the records, not the building: tenants without a county business-tax receipt or a Florida registration at this address are invisible to public data.
Los Angeles County assessment roll
Parcel record
| Field | Value |
|---|---|
| AIN | 5719027069 |
| Site address | 10 CONGRESS STREET |
| Land use (DOR) | 1901 — Professional services building |
| Building area (actual) | 61,840 sq ft |
| Floors / units / buildings | — / — / 2 |
| Lot size | — |
| Year built | 1972 |
| Zoning (primary) | — |
| Land value | $1,437,315 |
| Building value | — |
| Total assessed value | $9,794,202 |
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
- 10 CONGRESS STREET
- City
- Pasadena
- ZIP
- 91105
- Coordinates
- 34.13311, -118.15074
Within ~650 m
Nearby office buildings
- 625 S FAIR OAKS AVE0 tenants
188,973 sq ft · 2008
- 1111 S ARROYO PKWY0 tenants
131,209 sq ft · 1983
- 909 S FAIR OAKS AVE0 tenants
75,577 sq ft · 2017
- 443 S RAYMOND AVE0 tenants
68,082 sq ft · 1915
- 50 ALESSANDRO PL0 tenants
62,300 sq ft · 1983
- 630 S RAYMOND AVE0 tenants
58,559 sq ft · 2006
How does 10 CONGRESS STREET compare with other Los Angeles office buildings?
At 61,840 sq ft, 10 CONGRESS STREET is about 3 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 $158 per square foot of building area, against $306 across all office floor area on the roll.
Does the owner of 10 CONGRESS STREET 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 5719027069 as “Professional Building” (use code 1901). 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 10 CONGRESS STREET?
Los Angeles County's published roll does not include owner names, so no owner is shown.
What companies have offices at 10 CONGRESS STREET?
No business locations at this building appear in the public records ingested so far — no licence, tax or registry record currently lists this address; that is a gap in the record, not proof the building is empty.
How big is 10 CONGRESS STREET?
The Los Angeles County roll records 61,840 sq ft of building area, a build year of 1972.
What is the assessed value of 10 CONGRESS STREET?
$9,794,202 on the Los Angeles County roll. Assessed values are taxable-roll figures, not market prices.
What is the AIN for 10 CONGRESS STREET?
AIN 5719027069, site address 10 CONGRESS STREET, Pasadena. It is the key to look the parcel up in the County Assessor annual roll (Los Angeles County).
More around 10 CONGRESS STREET
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 5719027069.
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, “10 CONGRESS STREET, Pasadena, CA (AIN 5719027069)”, https://buildingcensus.com/offices/la/office-building-97c78b2a (data as of September 20, 2026).