The area has no common architectural theme. All the houses are completely different, tied together, not by any common design thread but by their history and association with the Hubbard family that established the estate. The diverse group of 1- to 2-1/2 story buildings, clad in clapboard, shingle, brick and stucco, have designs ranging from Colonial to Shingle Style to English Tudor and Colonial Revival and are often sited with special attention to topographical and landscape features.
Many of these buildings are early examples of “adaptive reuse,” as they are former outbuildings that have been moved and/or converted to residences. The family willingness to move buildings reached a high point in the 1920s, when one family member moved an 18th century house from its original location in Newmarket, New Hampshire (100 Orchard Avenue).