An entry posted over the weekend to the website of Ziegler Cooper Architects indicates that the local firm has won Shorenstein Properties’ invited competition to remake the soon-to-be-former ExxonMobil Building (at right), a prominent, bristly, and standoffish figure on the southern edge of Houston’s Downtown since 1962. The redo, which will be far more extensive than a simple reskinning, removes the most distinctive feature of the building, originally designed by L.A. architects Welton Becket for Humble Oil: the 7-foot-deep shades, cantilevered from marble-clad columns, that help shield sunlight from all but the top of the tower’s 44 stories.