Cuckoo is a brick two-story three-bay center-hall structure, with single rooms flanking the stair hall. The house is fronted by a porch across its entire width. A second set of rooms, part of the original one-story section, lie to the rear of the front rooms, with further 20th-century additions across the back. A semicircular closet with a small window projects on the ground floor between the fireplaces of the rooms to the right of the center hall. The fireplaces and chimneys project prominently from both side elevations. The Makielski addition to the rear features a bowed porch that echoes the curve of the closet. The interior of the addition includes a back stairway.
Outbuildings The small doctor's office is believed to have been built in the early-to-mid 19th century for Dr. Robert Barret a short distance to the north of Cuckoo, and was moved to Cuckoo by Dr. Philip Barbour Pendleton prior to the
Civil War for use as Pendleton's medical office. The large doctor's office was built
circa 1888 for Dr. Eugene Pendleton on the grounds of his house, named Linwood, in the village of Cuckoo. It was expanded to accommodate his son's practice about 1908, and was moved to Cuckoo in 1910 when Eugene moved there. The office was moved again in 1972 when the highway was widened, and was used as a medical office by Dr. Eugene Barbour Pendleton until 1979. A smokehouse was built in the late 19th century, and a barn in the early 20th century. An octagonal wood wellhouse, built in the late 19th or early 20th century, stands close to the main house. A garage was built in the 1930s.
Cemetery The Pendleton cemetery is located in an oak grove at the top of a small rise about 1/4 mile from the house. Surrounded by a low stone wall, the cemetery contains three gravestones and several unmarked graves. ==Recent history==