[4] Barbour was familiar with Perry's capabilities through his work at the University of Virginia and was attracted to Somerset, the home of his neighbor, Thomas Macon.

[4] Barbour's wife sold the estate in 1848 to Captain James Magruder, another local builder who had worked under Jefferson on the University of Virginia.

[4] Frascati's main entrance has paneled double doors set within a frame containing a large semicircular transom and complementing sidelights all encircled with elaborately patterned wooden tracery.

[3][4] Frascati's Tuscan portico has stuccoed columns, a full entablature, and a pediment with a semicircular lunette in the tympanum.

[3][4] Fenestration throughout Frascati consists of six-over-six sash windows set in wooden architraves and flanked by original louvered shutters.

The drawing room and passage each to have a handsome cornice of plaister, and each a handsome center ornament of plaister in the ceiling; the general style of all the wood work to be like Thomas Macon's dwelling house... there are to be two staircases one private from the dining room and chamber, with a closet under it; the other an elegant ornamental one out of the passage....The parlor exhibits plasterwork ceiling medallions and entablatures, the latter copied from a design in Asher Benjamin's American Builder's Companion (1806).