Tulum is an oasis of peace thanks to its white sand beaches, and lush landscapes. The image of this resort is based on a palette of fresh colors, balance with nature, and human scale; contrasting with the high buildings in Cancun that lack connection to green areas. Respect and admiration for an urban development that protects nature led to the design of the Ki Building, based on three basic rules: protagonism of vegetation, use of local materials, and ecologic solutions.  

Two volumes, one with 13 and another with 14 apartments, are raised on columns that give access to the building as a fresh-air lock. An irregular elliptic lattice, made of zapote wood, limits the main lobby. The natural vegetation makes its way inwards through columns and lattices. At night the lobby becomes a lampion of warm light. The two residential buildings are connected by means of a light steel bridge with a wooden floor that, supported by the elevator cube, opens the space towards the pool surrounded by a garden. The ground floor dwellings have private gardens, with an endemic stone wall, which will soon be covered in green. The apartments are accessed through open corridors that encourage cross-ventilation. To the outside, the properties of the upper floors have a large terrace in the shape of a wooden box, overlooking the patio or the street. The top floor apartments feature a roof garden, Jacuzzi, and a view of the Caribbean Sea. 

The richness or patterns, textures and colors of Yucatan is reflected in the interior and exterior finishes. The site stone of the main facade expresses the architectural language of the ensemble. The grooving lines appear all around the building, in the form of railings present in the wooden boxes. The concrete slabs are accompanied by some walls finished in chukum paste, and some others covered with zapote wood. The interiors use the same palette of the facade, joining by the effect of the large windows and terraces. 

In order to maintain a good control of the climatic conditions, and to achieve the highest possible efficiency, passive and ecological systems were projected, such as roofs, cross ventilation in the apartments, recovering of rain water, and solar panels.  In places like Tulum, which stand out for their natural beauty, the architecture must propose a very respectful dialogue with the environment. Thus the word Ki was chosen, which in Japanese