As part of a design competition the competition brief asked designers to create an ADA accessible 10x10 treehouse within the grounds of the State botanical gardens that could be constructed within a limited budget of $15,000.00 for materials with labor provided by Garden staff and volunteers. Our winning proposal sought to integrate treehouse and ramp in a singular landscape element rather than handling the two independently. This element consists of three clearly defined components: LANDSCAPE, WALL, and SHELTER. This restrained kit of parts limits the complexity of the construction process and minimizes the impact of the treehouse and accessible ramp to the children’s garden site. The organization of these components allows for different spaces of discovery to be defined within the garden.
NEST provides a variety of spaces by overlapping and layering the landscape, wall, and shelter components. The WALL consists of a single row of 4×4 cypress posts which weave through the children’s Garden landscape. This wall serves to retain a new LANDSCAPE, a planted berm which serves as the structure for an accessible ramp. The wall also serves as the primary structural component for a new SHELTER which cantilevers 5 feet out above the children’s Garden landscape. The types of open spaces created by this approach range from open FIELD to protected RIDGE; enclosed spaces range from a sunken DEN to an elevated NEST. How these spaces are used is open to interpretation, limited only by the child’s imagination.