Abstract: A self-building tower comprising a plurality of tower sections adapted to be connected in a sequence to form a modular tower, and a tower feeding system having a feeder sleeve block. The feeder sleeve block is elevated above a horizontal surface by a support column, and has a feeder aperture which allows tower sections to be positioned between the feeder aperture to be fed upwardly through the feeder sleeve block. The feeder sleeve block supports the modular tower in a position perpendicular to the horizontal surface. The tower feeding system has a hoist mechanism for raising each tower section through the feeder aperture, allowing additional tower sections to be attached to the lowermost tower section in the sequence.