Architecture, Building and Structure Design Flexhouse Residential building by Evolution Design Flexhouse is a single-family home on Lake Zurich in Switzerland. Built on a challenging triangular plot of land, squeezed between the railway line and the local access road, Flexhouse is the result of overcoming many architectural challenges: restrictive boundary distances and building volume, triangular shape of the plot, restrictions regarding local vernacular. The resulting building with its wide walls of glass and a ribbon-like white façade is so light and mobile in appearance that it resembles a futuristic vessel that has sailed in from the lake and found itself a natural place to dock.