Gemma Observatory

This private astronomical observatory is located on a remote mountain summit in central New Hampshire. Gemma’s design rejects a traditional dome in favor of a synthesized architectural form that maximizes usable space and responds to the stark geographic context. Its continuously faceted shape reflects the surrounding landform, and terraced concrete platforms transition between the summit’s bedrock and the building foundation, knitting together natural and man-made landscapes.

  An unconventional pattern of lock-seamed zinc cladding mediates between the irregular site topography and the building’s geometry, reflecting Gemma’s orientation to both geological and celestial landmarks. Its dimension, color, and patina evoke a material relationship to the gray granite outcroppings, while its heat transfer capability facilitates sky observation by minimizing temperature differential distortion. As a counterpoint to the exterior and its context, the interior is lined with fir plywood, creating a haven of refuge and warmth from the harsh surroundings.

Gemma Observatory, Concord, United States
Program: astronomica observatory
Architect: Anmahian Winton Architects
Design team: Alex Anmahian, Nick Winton, Mazen Sakr, Anika Gramsey, Travis Williams
Structural engineering: RSE Associates
Contractor: Patriots Builders
Completion: 2017