Updated: May 12, 2026
Location and Projects
Address
Washington, DC, 20002
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Nammack, John N Architect
Nammack, John N, holds a Architecture, Interior Design & Landscape Architects, Architect license and 1 other license according to the District of Columbia license board.
Their BuildZoom score of 92 ranks in the top 32% of 3,403 District of Columbia licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Nammack, John N, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Reattach original sheet metal cornice/banding at attic level. limited repointing to stabilize masonry behind cornice. limited painting
Valuation:
N/A
Permit #:
B2500919
Status:
issued
Fee:
$197
Permit Type:
Alteration and re...
Building Type:
N/A
Plumbing trade permit
Valuation:
N/A
Permit #:
P2602616
Status:
issued
Fee:
$29
Permit Type:
plumbing and gas
Building Type:
N/A
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Nammack, John N License info
License Not Verified
| License # | ARC4050 |
| Status | Active |
| City | District Of Columbia |
| Type | Architecture, Interior Design & Landscape Architects, Architect |
- When BuildZoom last verified this license, it had an expiration date of April, 2026. Check the current license status of Nammack, John N with the District of Columbia Board of Industrial Trades
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | ARC4050 |
| Status | Active |
| City | District Of Columbia |
| Type | Architecture, Interior Design & Landscape Architects, Architect |
| Date Issued | 05-01-2026 |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Nammack, John N at the District of Columbia Board of Architecture and Interior Design.
This is a sample of licensing data; click here to access a complete history.