First Street, Snohomish River and Valley Views from your desk. Executive Office, Open Design or Retail on Floor 2 of the Historic Marks Building. Join the vibrant mix of Retail and Executive Office Tenants working within a business park model inside and alongside the rich character of brick, stone, glass and original woodwork featured throughout the building. Fully restored, prominent with street presence on First Street and Avenue B in the Historic Business District located in downtown Snohomish.