Completed in 1975, the structure is notable for its exposed concrete slabs, which are typical of the Brutalist architecture style.

"[9] Boston City Hall, completed in 1968, is similar in design and may have served as inspiration for Woollen.

[10] Built to fill in the east side of the Indiana World War Memorial Plaza, the block-long, six-story structure is raised 24 feet (7.3 m) above grade on large columns.

The concrete building includes 290,000 square feet (27,000 m2) of flexible office on five floors and a parking garage level for 500 cars.

Its distinctive, horizontal façade tilts outward as the square footage of each upper floor increases, forming an inverted ziggurat.