Updated: Jun 23, 2026
Location and Projects
Address
PO Box 1750, Aspen, CO, 81612
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Cowperthwaite Architecture LLC
Cowperthwaite Architecture LLC, Aspen, Po Box 1750, Aspen, CO (Owned by: Arthur T. Cowperthwaite, Jr) holds a Architect license and 4 other licenses according to the Colorado license board.
Their BuildZoom score of 91 ranks in the top 37% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cowperthwaite Architecture LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Cowperthwaite Architecture LLC Services
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Cowperthwaite Architecture LLC Contact Information
Phone Number: (303) 778-7783
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Address: PO Box 1750, Aspen, CO 81612
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Building Permits by Cowperthwaite Architecture LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Repair/replace general restoration of primary facades and secondary elevations ie; water penetration wood tin and plaster components and re-pointing. removal of non-historic security grillage etc. the cornwall - dlm #91
Valuation:
N/A
Permit #:
2008-COA-0000189
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Art garage - tenant finish change of use permit # 06-152653
Valuation:
$9,500
Permit #:
2006-LOG-X000899
Status:
approved
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Basement finish app:john cowperthwaite
Valuation:
$7,371
Permit #:
98-000327 BP
Status:
Expired
Fee:
N/A
Permit Type:
434 additions & a...
Building Type:
N/A
685 emerson st - zoning only for new det garage *** 3/21/14 - changed reviewer. sg
Valuation:
N/A
Permit #:
2014-LOG-P000207
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
685 emerson st - zoning only for new det garage *** 3/21/14 - changed reviewer. sg
Valuation:
N/A
Permit #:
2014-COA-0000103
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Cowperthwaite Architecture LLC License info
Verified License
| License # | 303996 |
| Status | Active |
| State | Colorado |
| Type | Architect |
| Date Issued | 11-01-2025 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Cowperthwaite Architecture LLC at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ARC.00303996 |
| Status | Active |
| State | Colorado |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of October, 2017. Check the current license status of Cowperthwaite Architecture LLC with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ARC-303996 |
| Status | Active |
| State | Colorado |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of October, 2013. Check the current license status of Cowperthwaite Architecture LLC with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 3356 |
| Status | Inactive |
| State | Colorado |
| Type | Electrician |
- According to the Colorado Division of Professions and Occupations, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Cowperthwaite Architecture LLC at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 303996 |
| Status | Inactive |
| State | Colorado |
| Type | Architect |
- According to the Colorado Division of Professions and Occupations, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Cowperthwaite Architecture LLC at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
Cowperthwaite Architecture LLC Employees
AJ
Arthur T. Cowperthwaite Jr
AJ
Arthur T. Cowperthwaite, Jr
Owner
TC
Thomas R. Cowperthwaite