Updated: Nov 04, 2025
Location
Headquarters Address
3933 South Kelly Avenue, Portland, OR, 97239
Local address
Portland, WA, 97239
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Erin Holsonback Architect
Erin Holsonback, Portland, WA holds a Landscape Architect license and 1 other license according to the Arizona license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring Erin Holsonback, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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Erin Holsonback Contact Information
Phone Number: (503) 972-0311
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Verified License
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Erin Holsonback License info
Verified License
| License # | 72127 |
| Status | Active |
| State | Arizona |
| Type | Landscape Architect |
- BuildZoom verified this license was active as of June 2025.
Verify this license's status for Erin Holsonback at the Arizona Board of Technical Registration.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 20100458 |
| Status | Active |
| State | Washington |
| Type | Landscape Architect |
| Date Issued | 08-12-2025 |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Erin Holsonback at the Washington State Business Licensing .
This is a sample of licensing data; click here to access a complete history.