The initiative was part of a US$7 mil capital project that voters approved in a December 2013 referendum.

[4][5] The firm of Cummings and Conrad were selected to design and build a three-story, brick school at a cost of just over $100,000.

Ithaca architect Fred Thomas designed a new four-story addition to the school that merged elements of the original building.

The modern addition included laboratories, art and music rooms and health classrooms.

[6] In the 2014–15 school year, the Union-Endicott student body was 53% male, 47% female, 79% White, 7% Black, 7% Hispanic, 3% Asian, 0.1% American Indian/Alaskan Native, and 5% Multiracial.