A door assembly for attachment in or on a wall opening of a wall, the door assembly comprising - a door frame having at least one longitudinal part and a transverse part, - at least one door leaf, said at least one door leaf defining a first door leaf plane and a second door leaf plane distanced therefrom by a door leaf thickness, and being delimited by a first longitudinal end face, a second longitudinal end face, a first transverse end face, and a second transverse end face on the edge side and circumferentially, - a pivoting unit, by means of which pivoting unit the at least one door leaf is pivotably mounted on the at least one longitudinal part of the door frame and the door leaf is pivotable along a pivoting path between a closed position and an open position and vice versa, - at least one adjusting unit comprising - a drive device having a drive means and having a drive element, wherein the drive element defines a drive axis and is drive-connected to the drive means, and wherein the drive means applies at least one acceleration torque along at least a partial section of the pivoting path of the door leaf around the drive axis of the drive element, - a guide member, - a sliding element, said sliding element being guided longitudinally displaceably in the guide member, and - an adjusting lever, said adjusting lever having a first lever end and a second lever end arranged at a distance therefrom, wherein the first lever end and the drive element are connected to one another in a rotationally fixed manner and the sliding element is arranged in the region of the second lever end at an articulation point on the adjusting lever, - wherein the adjusting unit is arranged on the pivoting unit side both on the door leaf and on the door frame, and wherein the drive device is arranged in a receiving opening in the door leaf and the guide member is arranged on the door frame, characterized in that - the receiving opening for the drive device is designed to extend, starting from the first longitudinal end face located on the pivoting unit side, in the direction of the oppositely located second longitudinal end face. - a door frame having at least one longitudinal part and a transverse part, - at least one door leaf, said at least one door leaf defining a first door leaf plane and a second door leaf plane distanced therefrom by a door leaf thickness, and being delimited by a first longitudinal end face, a second longitudinal end face, a first transverse end face, and a second transverse end face on the edge side and circumferentially, - a pivoting unit, by means of which pivoting unit the at least one door leaf is pivotably mounted on the at least one longitudinal part of the door frame and the door leaf is pivotable along a pivoting path between a closed position and an open position and vice versa, - at least one adjusting unit comprising - a drive device having a drive means and having a drive element, wherein the drive element defines a drive axis and is drive-connected to the drive means, and wherein the drive means applies at least one acceleration torque along at least a partial section of the pivoting path of the door leaf around the drive axis of the drive element, - a guide member, - a sliding element, said sliding element being guided longitudinally displaceably in the guide member, and - an adjusting lever, said adjusting lever having a first lever end and a second lever end arranged at a distance therefrom, wherein the first lever end and the drive element are connected to one another in a rotationally fixed manner and the sliding element is arranged in the region of the second lever end at an articulation point on the adjusting lever, - a drive device having a drive means and having a drive element, wherein the drive element defines a drive axis and is drive-connected to the drive means, and wherein the drive means applies at least one acceleration torque along at least a partial section of the pivoting path of the door leaf around the drive axis of the drive element, - a guide member, - a sliding element, said sliding element being guided longitudinally displaceably in the guide member, and - an adjusting lever, said adjusting lever having a first lever end and a second lever end arranged at a distance therefrom, wherein the first lever end and the drive element are connected to one another in a rotationally fixed manner and the sliding element is arranged in the region of the second lever end at an articulation point on the adjusting lever, - wherein the adjusting unit is arranged on the pivoting unit side both on the door leaf and on the door frame, and wherein the drive device is arranged in a receiving opening in the door leaf and the guide member is arranged on the door frame, - the receiving opening for the drive device is designed to extend, starting from the first longitudinal end face located on the pivoting unit side, in the direction of the oppositely located second longitudinal end face.