Abstract: An apparatus for lifting and lowering buildings includes first and second beam support frames. Each support frame includes a horizontal base adapted to rest on the ground, a vertical beam guide extending upward from the base, a beam support member engaged in the vertical beam guide such that the beam support member moves substantially vertically up and down in the beam guide, and a jack mechanism operative to move the beam support member up and down. A beam having a length selected for use to raise a selected building has a first end supported by a beam support member of the first support frame, and a second end supported by a beam support member of the second support frame.