Outdoor, Back Yard, Small Patio, Porch, Deck, Grass, Trees, Shrubs, and Concrete Patio, Porch, Deck The dining room leads onto a terrace with a built-in concrete table and barbecue that are original to Raman and Schaffrath’s design. A pair of Hardoy butterfly chairs from Knoll are positioned by the pond.  Photo 12 of 25 in 25 Modern Homes That Kill it With Concrete from A Concrete Home in Rural Belgium