The building.
Set on a sloped half-acre site at the base of Boulder’s Flatirons, Level One is a 7,100-square-foot residence by F9 Productions, organised around expansive views and glass.


A house in Boulder, Colorado, glazed against the cold.
Glazed envelope · Interior and exterior partitions · Triple glazing
Set on a sloped half-acre site at the base of Boulder’s Flatirons, Level One is a 7,100-square-foot residence by F9 Productions, organised around expansive views and glass.

The house opens to long views across Boulder while its glazed envelope holds against the Colorado cold. The glass is both the view and the environmental boundary.


Apexfine minimal sliding openings and a Ponzio WS50 curtain wall frame the house and its views across Boulder. EFS carried the aluminium-and-glass work through the interior as well, executing internal and external partitions alongside the glazed envelope.


Triple glazing delivers an R-10 effective performance.




“Engineering Facade Solutions delivered top-tier craftsmanship throughout this project. The glazing serves as the home's undeniable main feature, showcasing their team's commitment to quality and architectural intent in every detail.”