In Chicago’s Hyde Park neighborhood rises Solstice on the Park, a 26-story residential tower with an angular design that has been shaped by solar studies. Created by local architectural practice Studio Gang Architects, the 250-unit modern building is highly site-specific to minimize energy demands — a sustainable approach that earned the project two Green Globes in the Green Globes Certification ranking. The apartment complex is also topped with a green roof and optimized for expansive views of Jackson Park to the south and Chicago’s skyline to the north.

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top half of dark tower building

Completed in 2018, Solstice on the Park catches the eye with the angled cuts in its facade that were created in response to optimum sun angles in Chicago’s latitude — 72 degrees in summer and 42 degrees in winter. The inward incline helps mitigate unwanted solar gain in summer, while maximizing solar advantage from the low sun in winter time. This approach allows natural light to fill the building — thus reducing reliance on artificial lighting — without straining the heating and cooling systems.

Related: Studio Gang to “sustainably grow” Toronto with this energy-efficient tower

angular windows on dark tower

Tilting the facade inward also created opportunities for landscaped terraces, where residents can enjoy indoor-outdoor living and city views. The sloped, floor-to-ceiling expanses of glass also play a trick on the eye and make the treetops of the nearby park look closer and larger.

close-up of angular windows

The non-glazed portions of the residential building are clad in Rieder non-combustible, glass fiber-reinforced concrete panels, measuring 13 millimeters thick each. The selected textured concrete panels are of a variety of colors, from liquid black to beige, as a sensitive nod to the district’s existing architecture characterized by sandstone and brick tones. The angled design gives the 250-foot tower a decidedly modern edge without looking out of place with the city’s boxy high-rises.

+ Studio Gang

Images via Rieder