_project Name: The Eco House

_location: Spain

_type: Modern Eco-Villa

_project type: Eco Design & build

_brief: To design and build a large, modern zero-carbon footprint villa.

_considerations: The long and narrow plot is located on a steep 45º gradient. The villa design had to be modern and incorporate lots of natural light.

_response: The final design features a variety of environmentally-friendly features:

Cooling
Externally the most apparent feature is the roof line which sits wing-like above the building line. The roof form and distance from the building is key, it holds the solar panels at the correct angle to maximize effectiveness whilst also hiding them from view. Less direct heat is transmitted into the house and the space between the two rooflines allows air to pass over the building adding to the cooling effect. Perimeter adjustable louvered vents are also located just below the building roof line allowing cooler air to pass through rooms whilst removing the accumulated hot air.

Extensive glass is used in the design however the ‘double skin’ effect again incorporating adjustable louvered panels, prevent excessive heat conduction through the glass.

The main living area hovers above a 30cm deep canal of water which is part of the cooling system.

Water Management
A rainwater reclamation system will be installed and Grey water will be recycled from holding tanks situated in the basement. The pool will be saline negating the use of standard pool chemicals.

Heating
A photovoltaic system will supply the electricity to run a radiant heating system within the floor. The adjustable louver wall system will optimize heat capture during the day and retain the warmth by night. Geo-thermal energy will provide a back-up cooling and heating system.

Suggested to you by Modern Zen Architects Phuket and Samui Thailand
and guest blogger, Architect Michael Earle