The original Carbo House, constructed in 1914, was destroyed by fire in 1931. The present building, erected on a larger lot that incorporates the original lot to the south, is one of a few boarding houses remaining from the resort era and the only example that has not been significantly altered. The two-story frame building employs a low-pitched hipped roof with exposed rafter tails and wraparound porches across both stories. Exterior stairways are located within the porches along the sides of the building. Each story is divided into eight equal-sized rooms, four apiece on the long sides, accessed from the porches. Dormers were added to the roof in the 1990s when the attic level was converted into an apartment; otherwise the exterior remains unchanged.