Updated: May 12, 2026
Location
Address
Washington, DC, 20007
Use our bidding system to
request a quote
William Leslie Spack Architect
William Leslie Spack, holds a Architecture, Interior Design & Landscape Architects, Architect license and 2 other licenses according to the District of Columbia license board.
Their BuildZoom score of 91 ranks in the top 37% of 3,403 District of Columbia licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring William Leslie Spack, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
William Leslie Spack Services
Start a project today:
William Leslie Spack Contact Information
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Similar Contractors See more
121
BZ Score
-
Avg Project
-
Projects
License # ARC101008
Washington, DC
115
BZ Score
-
Avg Project
-
Projects
106
BZ Score
-
Avg Project
-
Projects
William Leslie Spack Reviews
BuildZoom hasn't received any reviews for William Leslie Spack. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
William Leslie Spack License info
Verified License
| License # | ARC4246 |
| 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 William Leslie Spack 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.
Verified License
| License # | AX011463 |
| Status | Active |
| State | Pennsylvania |
| Type | Architecture Firm |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for William Leslie Spack at the Pennsylvania Department of State (Bureau of Professional and Occupational Affairs).
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | RA407277 |
| Status | Active |
| State | Pennsylvania |
| Type | Registered Architect |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for William Leslie Spack at the Pennsylvania Department of State (Bureau of Professional and Occupational Affairs).
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
William Leslie Spack Employees
WS
William Leslie Spack
Owner