Llewellyn Park is a 19th-century planned community built on the wooded First Watchung Mountain ridge in West Orange, and it contains both Glenmont and some of the most intact Victorian residential architecture in New Jersey. The community was designed with winding carriage roads, common parklands, and preserved naturalistic landscaping — a conscious reaction against the grid-plan suburbs being built everywhere else in the 1850s.
The park is private and access is restricted, but visitors on the Glenmont tour drive through the gate and along the winding roads, past Victorian and Edwardian houses in a remarkable variety of styles. The overall effect is of a well-maintained time capsule: the layout has not changed in 160 years, and the tree canopy has grown to entirely cover the roads in summer.