Case Study: Rules of Geometric Architecture – An analysis of The AA House by OAB

The AA House by Carlos Ferrater and Xavier Martí of OAB is one of the most unique single-family homes that has been built in recent times. Located in Sant Cugat, Spain next to a forest bordering a golf course, the house rises from the road as a series of sloping roofs among the trees in the garden that form a magnificent belt of picturesque scenery.


The house follows a pattern of squares that features diagonal and sloping roofs. This unique geometric style of the house defines the interior-exterior relationship as a whole to establish continuity. The 45-degree diagonals of the sloping roof also work allow room for skylights and double height ceilings, lending an artificial topography to the area.… Continue Reading