Casa Poly – An Artists Studio Composed of Polycarbonate Sheeting and Greenery

This unusual structure is an addition to the owner’s existing home. The polycarbonate clad extension functions as a studio space for a British artist living in Spain.


The Barcelona-based studio, ERA Architects, were responsible for realizing the clients dream of an “indoor eco-system”. They’ve dubbed the project “Casa Poly” thanks to its heavy use of the material.

Living Garden Casa - ERA Architects - Spain - Exterior - Humble Homes


The Casa Poly contains three levels, each of which is faced with polycarbonate sheeting, giving the space a greenhouse-like atmosphere. The translucent sheets ensure privacy is maintained, while also bathing the interior in lots of natural light.

Living Garden Casa - ERA Architects - Spain - Sitting Area - Humble Homes


Each level of the extension is connected to a garden space and overlooks a courtyard, complete with its own lemon tree. The interior spaces have been finished in bright green elements – be it the plants or the lush tiled flooring.

Living Garden Casa - ERA Architects - Spain - Sitting Area 1 - Humble Homes

Because the cladding has relatively little thermal mass, it was important to regulate the internal temperatures. To achieve this, the ERA Architects turned to passive cooling and ventilation. Patio doors and windows provide plenty of opportunities for cross-ventilation, exhausting hot air when needed.

Living Garden Casa - ERA Architects - Spain - Ground Floor Sitting Area - Humble Homes

The top level of the Casa Poly is dedicated to an art studio. It features high ceilings, and lots of natural light streaming through from the roof and wall panels. It also sports a balcony to the front. From the architects: “Tis studio area opens up to a large balcony and is conceived as a greenhouse ecosystem with step-like platforms, coupled with green carpet to evoke a wild prairie.”

Living Garden Casa - ERA Architects - Spain - Staircase - Humble Homes

For more spaces check out Studio For Two, a rooftop cabin composed of shipping containers. Or, Dragonfly Pavilion, a garden shed inspired by the wings of a dragonfly. See all spaces.

Via DesignBoom
Photos: Esteve Serra, Xavier Planas

Niall Burke

Structural engineer by day, tiny house designer by night. Niall has a keen interest in small spaces, green design, and sustainability. He started developing Humble Homes while studying for his masters degree in engineering. He is the founder and managing editor of Humble Homes.