The following text is from the original listed building designation:
HIGH STREET 1. 1614 (East Side) Nos 20 to 24 (even) TQ 5354/1/9 13.4.51 II GV 2. Circa 1700. Very much altered and restored and converted into row of Queen Anne style terrace houses. 6 window facade of 2 storeys. Red and blue stock brick. Flat arches of red headers over windows. Random stone plinth with brick quoins and 3 small quarter basement lights. 3 modern panelled doors (up 2 projecting brick steps) in moulded wooden doorcases with panelled reveals and soffits with flat projecting moulded bracketed hoods over. Modern sash windows with glazing bars in exposed moulded frames. Heavy projecting moulded modillioned wooden eaves and gutter. Hipped tile roof. 3 flat-roofed leaded dormers, (large dormer to left with sash windows, 2 smaller dormers to right with casements).
Nos 6 to 24 (even) form a group.
Listing NGR: TQ5316054387 (1)

In 1994 a survey was undertaken on the cellars in the Sevenoaks area. 21c High Street was thought to be the orginally and 21a and 21b were later additions added during the Victorian period. 21b said there was no cellar butt he others were not surveyed. 20, 22 and 24 all had cellars under their front rooms.(2)

<1> English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.

<2> ?, 1994, Sevenoaks Cellar Survey (Unpublished document). SKE17186.