The Mothersill Residence is a stunning single family vacation home located in Water Mill, New York designed by Bates Masi Architects in conjunction with interior design firm Damon Liss Inc. This sprawling 6,027 square foot home utilizes a boardwalk as an architectural device for weaving together multiple portions of a historic site with new building and landscape elements. Located on a creek-front property, the site contains two culturally significant structures designed by Andrew Geller and a diversity of landscape plantings. The two Geller structures, a small house and studio, were built in 1962. Common to Geller’s architecture, a boardwalk connects the two structures.

A varied collection of botanically significant plantings populates the property, including a rare specimen Yew garden, serpentine Yew, and more than 400,000 Siberian Iris. The western edge of the property slopes down to a wetland bordering the creek. A conservation easement on the property protects the two Geller structures, Yew garden and iris, while allowing for the addition of a new main house. The owners requested a design that would unify these disparate elements. To achieve this, a constructed path traverses the site to link visual and spatial relationships between the elements. The path takes the form of a raised, wooden surface that recalls the boardwalks of Geller’s architecture.

Building and wetland setbacks, existing landscape features, site access, and conservation easement restrictions overlap to create the parameters of the meandering path. The path originates from the relocated Geller House in the Yew garden and winds around the serpentine hedge to a new swimming pool.

As the path continues it passes the Geller Studio, now reprogrammed as a pool house, and connects to shaded outdoor living spaces. A new central lawn is defined as the boardwalk turns to extend through the main house. A cantilevered deck wraps the end of the main house at the termination of the path, providing views of the wetland and creek.

The surface of the path folds up and over to become the enclosure of the main house, simultaneously functioning as floor, wall, and roof. All surfaces of this enclosure are constructed with the same wood decking as the boardwalk. Their uniformity gives the effect of a single envelope containing a variety of parts and reflects the influence of design in Geller’s work.

In these ways the physical, material, and spatial qualities of the path facilitate an architectural dialogue between the Geller structures and new house that is interwoven with the existing landscape, collecting the once individual elements into a unified whole.

Photos: Courtesy of Bates Masi Architects