The guiding concept of the project is duality, where the two buildings represent polar opposites. Developed on a 215 m2 plot, both bodies host five 85 m2 apartments whose only variable are the terraces that de-termine the volume of the building. The two bodies are separated by a 1.63 m2 strip. The dividing line is designed based on a preexisting tree which embraces and articulates the project, symbolically expressing the duality. One body stands out as a floating volume, hard and vertical; the other is a fragileand horizontal body. One has a darkly colored wrapping and the other a light wrapping. Both face toward the street and, laterally, face a central courtyard. The vertical concrete volume on the right hosts a “dark terrace” that, on the intermediate level, is completely closed and on the top floor forms a conventional terrace with a blind railing. The glass volume located in the left body houses an open terrace which can also be closed. 该项目的指导理念是二元性，这两座建筑代表着两极对立。在215平方米的地块上开发，这两个机构容纳了5套85平方米的公寓，其唯一的变量是确定建筑物体积的梯田。这两具身体被一条1.63平方米的狭长地带隔开。这条分界线是基于一棵已经存在的树来设计的，它包含和表达了这个项目，象征性地表达了二元性。一个物体突出的是漂浮的体积，硬的和垂直的；另一个是脆弱的和水平的身体。一个是深色的，另一个是浅色的。两个面向街道，侧面，面对一个中央庭院。在右边的垂直混凝土体积有一个“黑暗的露台”，在中间层，是完全封闭和在顶层形成一个传统的露台与一个盲栏杆。玻璃体积位于左侧，有一个开放的露台，也可以关闭。

The parking occupies a module in the lower part of one of the bodies and at the opposite end there is a residential unit, which faces the street. The building has a cast iron lattice that allows for light to come through, protecting its interior. These lattices are adaptable to the desires of the user, bringing the exterior wall to life. 停车场在其中一具身体的下部占据一个模块，在另一端有一个面向街道的住宅单元。这座建筑有一个铸铁格子，允许光线穿过，保护它的内部。这些格能适应使用者的愿望，使外墙生机勃勃。

Parral 67 was nominated as a finalist in the 2008 World Architecture Festival in residential buildings. 67岁的帕拉尔被提名为2008年世界住宅建筑艺术节的入围者。