What characteristic is unique to the Green House Project model?

The unique characteristic of the Green House Project model is the presence of an open central living space. This design promotes a homelike environment and encourages social interaction among residents, which is a fundamental aspect of the model. The layout allows for a more communal living setting where individuals can engage in daily activities together, fostering a sense of community and connection.

Such an open design is crucial for supporting the values of the Green House Project, which emphasizes person-centered care, autonomy, and a lifestyle that replicates that of a typical home. This approach contrasts with traditional nursing facilities, which often feature more segmented and institutional spaces that can inhibit socialization and engagement among residents.

The other options, while relevant to various aspects of elder care or nutrition, do not specifically define the Green House Project model in the same unique way that the open central living space does.