KB Home is a US construction company specializing in residential construction across multiple states including Arizona, California, Colorado, Florida, Nevada, Texas, North Carolina, Idaho, and Washington D.C. They focus on building single-family homes and communities for first-time and move-up homebuyers using a built-to-order model for personalized homes at affordable prices. The company also invests in land acquisition and development for future building projects and offers mortgage banking services through a joint venture.