Architecture, Building and Structure Design Gilbam Residential House by Davood Boroojeni Villa Gilbam is a residential house located on a mountain slope in the Siahkal region of northern Iran. The site covers about 750 square meters and falls about 10 percent from east to west. The house stands on the east of the land, on the same rectangle of about 8 by 15 meters where an earlier building once stood, so contact with the ground is limited. Two cantilevered volumes extend from the core at ground and first floor levels without touching the ground. The three volumes are angled to form a shared central space with views of the surrounding mountains.