Pursuant to San Francisco Building Code Sections 105.6 and 106.4.1.4, a Structural Advisory Committee (SAC) was formed to provide independent expert review and to make recommendations to the Director of Building Inspections on the proposed new building construction permit applications on sites which are proposed to be excavated, graded, and four new buildings erected at or near 1230 Twin Peaks Blvd. under Permit Application Nos.