4 Tower Hill Avenue

4 Tower Hill Avenue is a late Georgian, two-storey house constructed from snecked local rubble, featuring freestone quoins, gable parapets with kneelers, and window dressings. The building has a slate roof and yellow brick chimney stacks adorned with red brick cornice bands.

The houses numbered 1 to 5 have two-window fronts, and all except No 2, which has modern windows, retain 16-pane sash glazing with deep stone lintels. The south elevation has modern half-glazed doors, which originally served as the rear of the terrace before the establishment of Tower Hill Avenue. No 1 lacks a door on the south side, with its entrance still located on the north side, now considered the rear. Other houses in the terrace maintain these as back doors, featuring similar small-pane sashes on this side, while No 2 has modern windows. Some houses have only one window on the first floor, and No 1 has had a horned sash inserted with a cemented surround. A few old downpipes remain, complete with embossed anchors.

At the eastern end, the larger Coastguard Cottage displays a two plus one-window elevation to Tower Hill Avenue, with taller 16-pane sash windows extending up to the eaves. The two-window gable end facing Marine Parade features similar windows and an offset flat roof porch with a round arched entrance and modern door, along with a one-bay section beyond that has a similar ground floor window. North of the gable parapet, which marks the former end of the building, is a three-bay extension from 1959 that matches the height and has a hipped roof.

Inside Coastguard Cottage, there are moulded cornices, a late Georgian staircase, some arched recesses, and large cellars.