The Capital Market Authority tower is part of a masterplan developed in 2009 for the King Abdullah Financial District, a ground-up financial center just outside central Riyadh. At 385 meters high (77 floors), this tower is the focal point of the district and one of the tallest buildings in Saudi Arabia. The tower is a slender, faceted glass volume emerging from a compact site. The cross-section undulates to create a faceted surface and to reduce impact of wind loading at higher altitudes. A series of concrete supercolumns offers vertical support at the perimeter and, in conjunction with diagonal framing members, creates a rigid structural cage and provides formal definition. The building envelope extends 30 meters beyond the top floor to house a large photovoltaic array. Construction began in 2010 and completed in 2014. As a core member of the project design team, Matt's role extended from initial concept through design documentation, primarily focusing on systems integration, solar shading, and design of podium structure, facades and interiors.