The adjoining land owner, Thomas Brighton, consented to the sale of his plat, and construction of the Irish Hills Observatory commenced.

Kelly proceeded to add a raised platform to his "Gray" tower (named as such because of its gray-painted exterior), an act which brought the two edifices to an even height.

[2][3] The Irish Hills Towers operated as separate and competitive entities through the 1950s, when Frank Lamping acquired both and connected them with a gift shop at the ground floor.

[4] The Irish Hills Historical Society began demolition of the tops of the towers on July 1, 2013 to begin the process of bringing them up to code.

[5] As of their September 2014 meeting, the township board had once again agreed to hold off demolition while the historical society continued fundraising to save the landmarks.