Architecture firm Studio Gang has completed a tiered residential skyscraper with angled glass elements that overlooks Forest Park in St Louis, Missouri.

Called One Hundred, the high-rise tower was completed in 2020 and takes its name from its location at 100 Kingshighway Boulevard in St Louis, which overlooks the park to the west.

The 380-feet-tall (116-metre-tall) tower has 316 units and measures 520,000 square feet (48, 310 square metres).

Tiers of four storeys tier each are stacked over the height of the tower. Fanned sections of glazing jut out and reflect the parkland opposite.

"The building reflects the changing light and weather in Forest Park, providing a dynamic backdrop for foliage and snow alike," said Studio Gang.

Outdoor spaces occupy the tops of each tier, which provide terraces for a quarter of the apartments. A green roof podium is shared between residents. The overlapping glass elements form the balcony rail.

With views of the city's Gateway Arch to the east, each apartment has a corner living room with double exposure windows that flood the interior with light.

The tower's ground floor includes public and retail spaces.

Studio Gang was founded in 1997 by architect Jeanne Gang. One Hundred is the firm's first project in the city of St Louis. Recent designs from the practice includes plans for a hotel in Denver with a scalloped facade and the Mira tower in San Francisco.

More projects in St Louis include a subterranean museum below architect Eero Saarinen's arch and basketball courts painted with murals by the artist William LaChance.

Photography is by Sam Fentress and Tom Harris.