The following text is from the original listed building designation:
FRINDSBURY EXTRA CP HIGH STREET TQ 77 SE 15/43 & 16/43 North side Upper Upnor Nos 19-21, (odd), (Castle House and Albemarle Cottage) GV II
Cottage pair. C17. Timber-framed and weatherboarded to left and rendered to right on ground floor and weatherboarded on first floor. Plain tiled roof with central stack and 2 dormers. Projection to left. 2 storeys and attics; 2 window front with projecting ground-floor bow to right.
Listing NGR: TQ7576370502

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