Selig Development and Engel & Völkers Atlanta have launched sales for 40 West 12th, the new luxury condominium at its mixed-use development 1105 West Peachtree. 1105 West Peachtree will also includes a 675,000-square-foot office tower, a 178-key Marriott Autograph Collection Hotel, 20,000 square feet of street-level retail and a direct connection with Midtown’s Art Walk. Selig has started site work on the development and will begin vertical construction of the three towers later this spring.