Exterior, House Building Type, and Concrete Siding Material A patterned steel frame serves as a front wall to the street, allowing for light and noise to penetrate the interior. The owners were adamant about the importance of integrating the culture and traditions of Saigon into their home, hoping their children would grow up with a knowledge of and appreciation for the city.  Photo 1 of 10 in A Narrow Courtyard Joins a Unique Two-Family Home in Saigon