Conversion of the historic 31 story office tower (built in 1942) for urban living, includes renovation of the office tower for apartments, a new 15 story apartment building with ground floor retail space and a 25,000 square foot amenity deck. The amenity deck, built over the new below grade parking garage, includes a raised swimming pool/spa with a 17′ long rain curtain, conversation decks, entertainment patio with two ‘grilling kitchens’, outdoor party room with arbor and fireplace, outdoor ‘cafe’ seating area, tiled water wall (45′ long x 14′ height), two security copper gates, enhanced pavement, blue glass rock runnel, planting and accent landscape lighting. The Mercantile amenity deck is the largest one built to date in downtown Dallas and the only one built at street level.