The Flat Mars Society was tasked with developing an end-to-end architecture for crewed human exploration of Mars that enables a crew of at least four to remain on the surface of Mars for a minimum of seven years, a project dubbed as Homesteading Mars. By assessing various factors of the mission, such as the crew and cargo transportation to/from Mars, base design, power, communications, life support, and thermal controls systems, we have developed a robust mission plan that will suit a variety of vital requirements. Researching and developing realistic sizing estimates for various overall system factors enabled our team to put forth a feasible yet innovative solution to address this complex and wide-ranging problem.