Updated: Jul 15, 2026
Location and Projects
Address
6400 MODENA LN, Longmont, CO, 80503
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Robert Rosenthal Architect
Robert Rosenthal, 6400 Modena Ln, Longmont, CO (Owned by: Robert W Rosenthal) holds a Architect license and 4 other licenses according to the Colorado 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 Robert Rosenthal, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Robert Rosenthal Services
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Robert Rosenthal Contact Information
Phone Number: (303) 545-5500
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Address: 6400 MODENA LN, Longmont, CO 80503
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This is a sample of this contractor's permits. Click here to access their complete permit history.
New full service restaurant 4038 square feet to be corner bakery cafe. to demolish perkins restaurant on separate permit. requires installation of reduced pressure assembly (rpa)backflow preventor on main domestic water line as it enters the building; also backflow needed on fireline and irrigation; certified tester must test device after installation-->norm mill 970-416-2249 nmill@fc... see more
Valuation:
$690,000
Permit #:
B1102275
Status:
complete
Fee:
$23,499
Permit Type:
N/A
Building Type:
N/A
Addition bathroom in existing attic space & remodel existing bathroom new window & stucco
Valuation:
$87,000
Permit #:
BP-13-0139
Status:
complete
Fee:
$2,063
Permit Type:
N/A
Building Type:
N/A
New single family dwelling w attached garage (spr-12-0047)
Valuation:
$1,000,000
Permit #:
BP-13-0226
Status:
complete
Fee:
$18,437
Permit Type:
N/A
Building Type:
N/A
New single family dwelling w attached garage (fmf-10-0083)
Valuation:
$553,000
Permit #:
BP-11-1348
Status:
issued
Fee:
$11,140
Permit Type:
N/A
Building Type:
N/A
New single family dwelling w attached garage (spr-12-0006)
Valuation:
$579,975
Permit #:
BP-12-0592
Status:
complete
Fee:
$11,630
Permit Type:
N/A
Building Type:
N/A
Greenhouse addition attached to garage (sprw-11-0052)
Valuation:
$82,000
Permit #:
BP-11-1763
Status:
complete
Fee:
$1,964
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
19-RESE0025
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Agricultural barn (sprw-10-0016)
Valuation:
$180,000
Permit #:
BP-12-0200
Status:
complete
Fee:
$4,286
Permit Type:
N/A
Building Type:
N/A
Ag equipment cover for solar array (bp-13-0130)
Valuation:
$38,305
Permit #:
BP-13-0129
Status:
complete
Fee:
$1,086
Permit Type:
N/A
Building Type:
N/A
Deconstruct existing single family dwelling (spr-12-0047)
Valuation:
$10,000
Permit #:
BP-13-0486
Status:
complete
Fee:
$198
Permit Type:
N/A
Building Type:
N/A
Interior remodel furnace & new windows structural modifications
Valuation:
$1,400,000
Permit #:
BP-11-0362
Status:
complete
Fee:
$23,218
Permit Type:
N/A
Building Type:
N/A
Single family dwelling w attached garage (spr-07-120)
Valuation:
$1,720,000
Permit #:
BP-10-1298
Status:
complete
Fee:
$25,753
Permit Type:
N/A
Building Type:
N/A
Addition of llama barn (sprw-10-0016)
Valuation:
$65,700
Permit #:
BP-12-0145
Status:
filed
Fee:
$1,646
Permit Type:
N/A
Building Type:
N/A
Underground emergency storage/shelter (spr-10-0039)
Valuation:
$550,000
Permit #:
BP-10-1735
Status:
issued
Fee:
$10,678
Permit Type:
N/A
Building Type:
N/A
Garage addition (spr-13-0009)
Valuation:
$43,800
Permit #:
BP-13-0533
Status:
complete
Fee:
$1,198
Permit Type:
N/A
Building Type:
N/A
Single family dwelling (spr-10-0085)
Valuation:
$2,000,000
Permit #:
BP-10-2066
Status:
complete
Fee:
$30,390
Permit Type:
N/A
Building Type:
N/A
Unfinished carriage unit see also bp #b200005189 for valuation fees calculated on unfinished garage & storage. development fees plus school impact fee paid because of w/s stub-in
Valuation:
N/A
Permit #:
B200102426
Status:
complete
Fee:
$3,716
Permit Type:
N/A
Building Type:
N/A
Deconstruction of existing residence
Valuation:
$40,000
Permit #:
BP-10-1942
Status:
complete
Fee:
$576
Permit Type:
N/A
Building Type:
N/A
Deconstruction of residential interior
Valuation:
$19,400
Permit #:
BP-11-0210
Status:
complete
Fee:
$342
Permit Type:
N/A
Building Type:
N/A
Grading for driveway (approx. 2 973 cu yds)
Valuation:
$45,000
Permit #:
BP-10-1156
Status:
issued
Fee:
$634
Permit Type:
N/A
Building Type:
N/A
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Robert Rosenthal License info
Verified License
| License # | 203283 |
| Status | Active |
| State | Colorado |
| Type | Architect |
| Date Issued | 11-01-2025 |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Robert Rosenthal at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CL0448 |
| Status | Active |
| County | Larimer County, Co |
| Type | Class B |
| Class | Class B |
- BuildZoom verified this license was active as of September 2025.
Verify this license's status for Robert Rosenthal at the Larimer County.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ARC.00203283 |
| 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 Robert Rosenthal 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 # | 14954 |
| Status | Active |
| State | Maryland |
| Type | Architect Architects |
- When BuildZoom last verified this license, it had an expiration date of October, 2015. Check the current license status of Robert Rosenthal with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | ARC-203283 |
| Status | Active |
| State | Colorado |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of October, 2015. Check the current license status of Robert Rosenthal with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
22
Permits
- Building permit records show that Robert Rosenthal has worked on 22 permitted projects.
Robert Rosenthal Employees
RR
Robert Rosenthal
Owner
RR
Robert W Rosenthal
Owner
RR
Robert W. Rosenthal
Owner
SM
Sean Murphy