OAS1S has introduced a unique concept for the future of urban green living: a 21st century home that merges architecture and nature into one. The OAS1S houses are inspired by trees that act as modern skyscrapers. These “treescrapers” consist of wood and leaves, collect sun and water, plus provide oxygen, shelter and food. The tall, slim and detached houses have average tree-like dimensions of 6 x 6 x 12 m, with spectacular vegetation facades. The basic architecture is shaped as a number 1, and gives people the experience of being one with nature. Each home can be combined with others to create forest-like districts that mix trees with tree-like houses, in an organic and public, compact and car-free lay-out. Construction is completed using recycled wood, organic high-value insulation, green walls and triple glazing to create off-grid, 100% self-sufficient homes.