Koss Design+Build
Paradise Valley, AZ, USA
Project Year
Private Houses
Brazil Photography


Koss Design+Build as Designers

New single-family home at the base of Camelback Mountain in the Phoenix area. The Owners were seeking out a modern, open concept with simple materials to create a home for their family as well as to complement their love of Danish contemporary furniture and artwork. An effortless butterfly roof floats over the home and defines the distinctive design. The simple act of tilting the roof up opens the home out to the surrounding views.


Long overhangs help counteract the openness which the butterfly roof affords while also providing shaded living spaces from the intense Arizona sun. Rain water from the butterfly roof is collected in 2 areas. These 2 scuppers are where 80% of all the roof rain water accumulates. During rain events these cantilevered elements create water fall features. A homeowner goal was to install a rain water harvesting system in the future so the roof was designed to accommodate this objective.


The angle of the butterfly roof was calculated to open the inside of the home to the mountain views beyond while also providing the proper angle for the photovoltaic panels. The roof sloping towards the inside of the home hides the solar panels from view. At the low point of the butterfly roof, the structure is exposed and defines the main circulation path of the home. Exposed concrete floors help to further define this area. The main living area of the home is centered on a long lap pool and a two-sided fireplace element. On the interior of the home a main, central kitchen island aligns with the pool and fireplace, this ‘living’ axis intersects with the circulation spine of the project organizing the layout of the entire home.


Exposed beams, sandblasted block, concrete, stucco, wood floors and glass define the material palette which bleeds from the exterior to the interior of the home. The outdoor and indoor living elements are organized around the pool and views while the less important areas such as the garage and storage are located on the West side of the home to act as a sound buffer as well as a heat sink from harsh West sun. Photo-voltaics, efficient house systems, deep overhangs and future rain water harvesting plans are all part of the sustainable planning of the home.

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Project Credits
Frankfurt School of Finance and Management
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Frankfurt School of Finance and Management

Adickesallee 32-34, Frankfurt, Germany - Build completed in 2017
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