Built circa 1868, as an annexe to Castle Hill House, by Wollaston Knocker, the owner of Castle Hill House, as town clerk's offices. It is in an exposed yellow brick with two storeys and four bays with side entrances at both the south eastern and north western ends of the façade. The south eastern is within a two-storey one-bay C18 extension, it has a decorative surround which includes a moulded cornice with dentil detailing over and reeded pilasters on either side. There is a single window located within this C18th extension above the door. A string course forms a sill to this window, this continues onto the building to the south east (castle Hill House). The north western door is within a single storey extension with low brick parapet over. All of the windows (nine in total) have flat gauged brick arches above in a red brick. There is a rendered string course over the top of the ground floor which forms a continuous sill to four of the first floor windows. A rendered parapet is located at the top of the second floor, concealing the roof level. Several modern features are attached to the façade with their associated wiring grouped untidily. A description of the interior is included within the listing text and notes that this building has a straight flight staircase with moulded balusters and a turned newel post. One window on the first floor rear elevation retains wooden shutters. The basement has a barrel-vaulted strong room about 15 by 12ft with a six inch thick locking iron door. At the far end of this is a blocked tunnel which leads into the air raid shelter room of Castle Hill House. Overall this building is structurally sound and in a good condition.

The south eastern of the two ground floor doors is in timber painted blue with six moulded panels. The two doors on the north western side of the building are later insertions. The first floor window within the C18th extension on the south eastern side of the building is a timber framed sash divided into 12 panes by timber glazing bars. All other widows are divided into four large panes. All timber frames are painted white. Overall all windows and doors are in a good condition with all panes present an intact. (1)

<1> Kent County Council, 2019, Historic building condition asseesment and photographic survey of Dover Town Centre (Unpublished document). SKE52120.