You can smooth out the motion of this render with several tricks:

1. Aim the camera with a Point At behavior at a Target Helper Object (THO) set over by the building. Doing this lets you animate what the camera is pointed at separately from where the camera moves.
2. The Bezier will be your best bet for animating both the Camera and the THO.
3. For better Camera control, you can also animate its motion along a path. This gives you the benefit of a visual where the Camera goes, plus is pretty intuitive to move around to change the placement. If you choose to use this method along with a Point At behavior and THO, you don't even need to animate the camera's movement.