CASA LIBRE
SAN JUAN, PUERTO RICO
Design 2004-06
First Prize - Experimental Category
Low Energy Housing Competition
Puerto Rico Department of Housing and
US Environmental Protection Agency
Concept: This award winning project, was singled out by the international jury for the clarity and simplicity of the scheme, the incorporation of passive technology and sustainable materials, and the reduction of resource consumption in the construction and operation of the home. It is the first building in the Caribbean to achieve a coveted Energy Star rating.

The structure of the house allows reconfiguring the spaces to include office and home enterprises. Designed for the hot humid tropics, this affordable housing project promotes comfort without air conditioning, including natural ventilation and lighting, as well as flat panel hotwater heating and photovoltaic systems, all which provide for energy savings. Its inverted roof shape, higher at the eaves, allows for natural and convective ventilation and more natural illumination, makes rainwater collection for reuse easier, and importantly, reduces perimeter uplift, making the roof more hurricane resistant.
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One Bedroom / Studio Plan
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Three Bedroom Plan
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Open Plan
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Two Bedroom / Office / Mother-in-law Plan
Construction: Thematerials incorporated in this structure are from sustainable and/or recycled sources and many of them are themselves recyclable. It combines a concrete structure with light wood framing, allowing for increased insulation.