The Schrager and Marriott Edition brand of hotels comes to West Hollywood with the partnership of developers Steve Witkoff and Howard Lorber.  The Witkoff Group employed Cefali & Associates to design the excavation.  Perched on the southeast side of Sunset and Doheny the excavation for the below grade levels varied from 9 feet all the way up to 50 feet.  A soldier pile and lagging system was used.  Tiebacks braced most of the piles, with corner bracing at select locations to avoid obtaining easements with neighbors.  A small segment consisted of a secant pile wall with walers and 281k tieback anchors to hold back an enormous billboard.