Share: Architectural Design Sigma Drafting and Design Services Visit Website Request Info 3515 Long Lake Dr SE Olympia, Wa 98503 (360) 464-5373 Sigmadrafting.com Hours: 7-5 About Map About Design Services specializing in additions, remodels, and new construction. Drafting support for architectural, structural, and civil. As-built plans, 3d conceptual modeling and permit assistance. What's Nearby? Distance: 5 10 15 20 25 50 mi.