S M A Stephen Moser Architects

Mamaroneck Residence —

Mamaroneck Residence
Mamaroneck, NY

A children's treehouse inspired the renovation and expansion of this residence on the edge of Saxon Woods Park. Originally built by a developer in the late 1950s, the ranch-style house faced away from the wooded park. Several additions, including an indoor pool, further obstructed the park views. The treehouse, which the clients had built some years ago for their grandchildren, sits on stilts among the trees, and guided SMA’s ideas for the redesign’s silhouette, orientation, interior spaces, and materials. Highlights include a new covered entrance supported by two tree-like steel columns; a single large sloping roof that unifies the north side of the house and opens up the office and kitchen to the park; a new three-sided glass family room facing park and pool; the addition of a second-floor primary bedroom suite with treehouse views; and the thematic use of wood slats in the detailing of both exterior and interior.

Project Size

5,300 sf

SMA Team

Stephen Moser, principal


O'Brien Carpentry


Michael Moran/OTTO

Structural Engineer

Petrucelli Engineering

Civil Engineer

Benedict A. Salanitro, P.E.

Metal Fabricator

Ralph's Blacksmith