Architecture, Building and Structure Design Terrace Swimming Pool by Georgi Katov The new structure is a swimming pool/terrace addition to a historic building located in its hidden back courtyard. The rhythm of the frames and the transparency/reflection of the glass dissolve the new structure in the garden rather than making a formal composition with the existing building. Its translucent surface glows with water reflections at dark. The linear internal space is confined by the stone masonry of the classic base and the light and silhouettes between the metal structures. The black stone cladding marks the excavation and integrates the heating system.