The following text is from the original listed building designation:
1. 5280 SEAL SEAL Park Lane (West Side)
Dorton House (School for the Blind) TQ 55 NW 42/1029
II
2. The original building a mid C18 house of 2 storeys, 2, 3 and 2 bays, symmetrical. Ends project slightly. Galletted coursed, squared rubble with ashlar quoins and dressings. Third storey added circa 18OO by George Dance the younger. Low pitched hipped slated roof partly concealed behind balustrade above entablature with modillion cornice. Moulded architraves with triple keystones to later casement windows. Bands resting on the keystones. In late C19 large north additions were made in a similar style externally. Inside the old house was largely remodelled in a very rich style, leaving little original work behind. Large Eastern extensions for school purposes not included.
Listing NGR: TQ5484056379

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