In these later years in Europe we have been witnessing meaningful changes in the attitude toward the wood and the way to employ it. The result is a diffused increase of the use of the wood in housebuilding. Many European architects now consider the wood an essential element of theirs "palette" of materials, and above all a modern material. Journalist and author of "Wood Architecture" Ruth Slavid observes: "The wood is not the exclusive dominion of the traditionalists anymore, but it has an important role in developing in the contemporary world." The wood has important advantages in comparison to the other construction materials; everything it is renewable. It is a natural insulator, has good acoustic features, an elevated relationship resistance/volume mass, is versatile and easily workable. Obviously it deals with a material with characteristics that can vary among many different woody kinds. Versatility of all these kinds opens so many planning possibilities. Nevertheless these possibilities of choice also constitute a challenge for planners. Understanding wood as a material is essential to make the correct choice of the kind or product and to realize projects of success. It has certainly been this new attitude to increase in Europe the use of broad-leaved wood in the housebuilding. Particularly in the later years the broad-leaved trees of the tempered zones have gained more importance and they do are currently fashionable; among these, the American broad-leaved trees develop a key role. Why? Because they are a sustainable resource, largely available and have interesting performances. No better way to show theirs performances than referrring to their employment. This publication illustrates twelve recent examples of as the broad-leaved wood has successfully lent itself to satisfy formal and functional demands in the building planning.