Belmont

Overlooking Belmont Bay, the plantation house "Belmont" remains today on Mason Neck, an historic landmark of the colonial era, and doubtless one of the oldest dwellings in Fairfax County. Its location is 10913 Belmont Boulevard. Reportedly the original house contained five rooms with cellar and is believed to have been built by Catesby Cocke about 1730 when the first Prince William Courthouse was established on the Occoquan. The house appeared on a 1737 map of the area. Catesby Cocke served as clerk for Stafford, Prince William, and Fairfax counties until 1746. Catesby's father, Dr. William Cocke, served as Secretary of State for the Virginia Colony. In 1742 Cocke sold "Belmont" to Edward Washington.

A sale notice for the structure, in the August 1 Maryland Gazette for 1765, lists it as a structure "on Occoquan River called Belmont," and describes it as a "brick house 24 x 18, two rooms below and one above, a wooden house 66 x 18, three rooms below and cellar, new barn shingled, kitchen, dairy, meat house and fish house."

Most of the early house was destroyed in 1866, and a new house built on the site. This was demolished in 1959, but parts of the foundation and deteriorating timbers survive from this section. The brick wing still standing is a story and a half.