6, St Edmunds Terrace

House; originally officers' accommodation and boathouse for Coastguard Station. Built in 1883, with alterations from the early 20th century onwards. Constructed in red brick laid in Flemish Bond with a tile roof.

The building is square in plan with a rear wing to the southeast and stands two storeys high. Early and later 20th-century single-storey extensions were added to the north and south of the back yard. Originally divided into two halves, the north range housed the boathouse and features a pitched roof with gables at each end, the west gable projecting slightly forward. The south range's rear wing is lower with a hipped roof, while its main roof ridge runs south to north and supports a single centrally placed long narrow chimney stack.

The west elevation overlooking the river displays the gable end of the north range. Immediately to the south is a small gabled dormer with a window below. Moulded brick plaques sit beneath each gable: the northern one depicts the Crown and Anchor motif of the Royal Navy, while that under the smaller gable is dated 1883. The north range carries two bands of moulded brick decoration above and below the first-floor windows, both featuring alternate sunflower and leaf motifs. The south range has a flat-roofed canted bay window to the ground floor with egg-and-dart ornament in moulded brick below the cornice. Three further windows occupy this elevation; the southernmost of these was originally a door with a cambered arch, and the boot scraper survives beside it. The ground floor of the north range contains a modern uPVC canted bay with French doors in the wide opening presumed original to the boathouse. Above this bay are a pair of windows, also with cambered arches. All windows in this elevation are modern uPVC replacements, but windows elsewhere in the house retain their original wooden casements. On the east elevation, the window below the north gable is placed slightly off centre to allow for the slope of the look-out tower roof. The look-out tower has windows to both east and north, meeting at the north-east corner. Its roof line has been extended over an early 20th-century pebble-dashed extension, which continues as a similar later 20th-century single-storey addition. A single-storey extension to the south joins the rear wing to an original outbuilding, with a wall to the east enclosing the space to form a yard containing a well covered with a stone slab.

The interior was not seen, though it has been suggested that a stick baluster stair survives.

The building was established following the 1875 plans for a new coastguard station, opening in 1883. Three officers occupied what is now 6 St Edmunds Terrace, with the building apparently divided between domestic accommodation and a boathouse. The station was commanded by Captain Sir Alfred Bagge RN, 4th Baronet (1843–1916), who also served as Deputy Lieutenant for Norfolk. Both the 1887 and 1905 Ordnance Survey maps show the building as two separate units, with a wide path—presumably a slipway—running from the north end of the west elevation down the slope towards the river. A terrace of five cottages provided accommodation for crew and their families, while a detached building at the south end of the terrace, now known as the Battery House, appears to have functioned as a residential training college for young men from the surrounding area interested in a career at sea. By 1922 the Kings Lynn Coastguard Station contained a detachment of only four men. Following the establishment of HM Coastguard in 1925, the station was closed and sold. The 1928 Ordnance Survey map shows 6 St Edmunds Terrace as a single unit with a small extension added to the rear.