Studio Hollenstein’s Green Square Library and Plaza has an unconventional organisation consisting of three parts including the underground, sunken objects and the open plaza floor. The project consists of legible geometries of the square, circle, triangle and trapeze as instruments scattered along site. To the west, there is a triangular volume wedged into site pronouncing as the main entrance off Botany Road. This entrance serves as a café and can be reimagined for a function space. The circular garden punctures through the Plaza floor connecting into the centre of the Library plan. The underground space is open with the walls lined as bookshelf’s and playful objects scattered throughout, creating zones of activity. Importantly, there are a series of 42 large skylights which provide light to the underground, and at night they become beacons, illuminating and bringing life to the plaza floor. Central to the project, are a series of six small-scaled square rooms are stacked on top of each other forming a ‘tower like’ volume. Within the tower hosts a range of programs including a double height reading room, a music room, a computer lab and meeting spaces or areas to study. Lastly, there is a trapezium shaped amphitheatre at the east side of the site which progresses down from the plaza to the library floor. This element forms another entry point into the main library space. Almost all volumetric extrusions use glazing and steel frames, exposing the activity within each space.