welcome to OAS1S™


Experience here the innovative and attractive fusion of architecture and nature.

OAS1S treehouses are uniquely designed as trees, which create ecoresorts designed as forests.

These incorporate the timeless and sustainable qualities of earth's most important and beloved structures.

A desirable synergy between people and our planet, for homes or hotels in urban or natural sites.

OAS1S offers the exciting, feasible and 100% green building solution needed today.




 Identical to trees the OAS1S™ architecture is tall, slim, detached, and has spectacular facades with vertical gardens.

 These "treetowers" are basic, classic, aesthetic, and biomimetic, a true fusion between architecture and nature.

 The iconic OAS1S™ units are shaped as a numeral 1, and answer to the deep human need to be 1 with nature.

The customizable models have 2/3/4 floors with large windows, and rustic cabin-like interiors of recycled wood.

OAS1S™ improves life on earth by cutting edge answers to the current, urgent and global demand for green building.




The forest-like OAS1S™ areas mix trees with tree-like units in an organic and public, compact and car-free lay-out.

A true fusion of city and forest in a high urban density (maximum FAR 1.0) plus a multiple land-use as e.g. park.

OAS1S™ offers diverse mixed-use models for residential (single/multi-family), recreational or hospitality use.

OAS1S™ is an innovative, top-quality and 100% green building typology, which creates thrilling new possibilities: 

Green communities which upgrade concrete jungles, or ecoresorts which harmonize within nature like chameleons.


technology designed AS ECOSYSTEMS


Similar to trees OAS1S units consist of wood and leaves, collect sun and water, provide oxygen, shelter, food and reuse. 

Smart, simple and sustainable architecture, by feasible, available and proven technology, for average building costs.

The OAS1S™ constructions are 100% cradle-to-cradleprefabricated of biobased and recycled elements.

Furthermore the designs are 100% off-grid, so self-sufficient with energy, water, waste, and food, by using e.g.:

Solar panels and boilers, gray water and filtration systems, water and heat storage, heat pumps and infrared heating.


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