The vertically oriented lander, which contains the mechanical services of the habitat, inherits the likely orientation of the crew’s (MTV) Transit Habitat to ease the crew’s adjustment to life on the Martia’n surface. The habitat’s stacked levels organize core programs by activity within the lander, introducing a spectrum of private to communal interior spaces. Interior efficiency creates sizable storage pockets at the base of the lander to house both the bots as well as the four Environmental Control and Life Support Systems (ECLSS). Once the lander has deployed the inflatable ETFE membrane, pre-fabricated bridges unfold from within the lander, creating ‘pockets’ for inserted program. A spiral stair at the core of the lander provides circulation to the upper levels of the habitat, while simultaneously offering the crew a means for exercise when ascending levels.