Kaufman & Broad, the largest home builder in Las Vegas, is opening its sales office in the Monaco community to 24-hour operations to accommodate customers working irregular shifts. This is the first home builder in Nevada to offer 24-hour viewing of model homes and access to sales representatives. The Monaco community was chosen as its large number of models and high traffic volume. It has over 500 homes sold so far and will eventually have 1,300. The round-the-clock hours are intended to better serve customers who want to view homes after work, with at least two sales agents staffing overnight and added security and lighting.