Interior Space and Exhibition Design Mini Opera House Residential Apartment by Szu Wen Wang This is the residential interior design of the small house. Unlike the big houses’ designs with spacious hallways or intermediate spaces, this small house’s design has to be detail-oriented. Given the small indoor space, the interior design project for this 3-person family was difficult; the creation of design style, furthermore, was nearly impossible. Designers began by rearranging the layouts that include a big and a small bedroom, in which the many hidden design ideas brilliantly expand the indoor space in the vertical and horizontal scales as magnificently as the opera house.