No. 7 and Attached Railings

House, now flats, on the east side of Catharine Place. Completed in 1779 and designed by John Wood the Younger, built by Charles Hale. The building has been substantially altered in the 19th and 20th centuries.

The front elevation is constructed in limestone ashlar, with the left side painted. The roof is a Welsh slate double pile parapeted mansard, hipped to the left with a coped party wall and two ashlar stacks to the right, now largely without pots. A lead roof covers the single storey projection to the left. The house stands at the north-east corner of Catharine Place, breaking forward slightly from the adjoining house to form a pavilion that terminates the terrace and projects slightly beyond it to the rear.

The building is three storeys with an attic and basement, arranged in a three-window range. The first floor has three two-over-two sashes in splayed ovolo moulded architraves with friezes and cornices over, set on moulded stone sills supported by console brackets. The second floor contains three six-over-six sashes in ovolo moulded architraves with stone sills. The ground floor has three two-over-two sashes in splayed reveals with stone sills. To the left, a single storey projection contains a six-panel door with flush beaded, fielded and glazed panels and a painted lion's mask knocker, set within a pedimented Doric doorcase with one step. The crossover is paved with a single pennant slab and has a wrought iron footscraper. The basement has three six-over-six sashes in plain reveals with stone sills and wrought iron window bars with shaped heads. The basement entrance is a vaulted stone paved porch with limestone area steps (now with concrete treads) and wrought iron handrail. A triple dormer with plate glass horned sashes breaks the roofline. A band course over the ground floor preserves the incised street name "Catharine Place" (conserved by Richard Strachey in 1988), and the eaves feature a modillion cornice with coped parapet. The single storey projection to the left has moulded coping to its parapet, which ramps down to the left.

The left side facing Rivers Street has three blind windows with stone sills to the first floor and three similar windows with one small 20th-century window to the second floor. A single storey extension at ground level has one similar blind window, one two-over-two and one six-over-six sash in plain reveals with stone sills. A parapeted single storey extension continues to the rear with two six-over-six sashes in plain reveals with stone sills. A further single storey extension has a shallow plinth, with the doorcase cornice continued over the ground floor, parapet with moulded coping, and eaves cornice continued from the front with a coped gable wall.

The rear elevation contains 19th and 20th-century windows, including six-over-six sashes serving the second half-landing of the staircase. A canted bay (probably 19th-century) extends across ground and first floors, with a small extension off the staircase rising to the first half-landing.

The interior of the ground floor flat contains an Edwardian timber fireplace to the front right, enriched ovolo cornice, and ovolo moulded panelled window shutters. The room has been subdivided to form a kitchen with a 20th-century door and hollow architraves. The inner hall has a stone floor with slate dots (now polished) and a cantilevered stone staircase with moulded soffit, stick balusters, and mahogany grip handrail. A hall arch features simple plaster decoration and enriched cornice matching that at No. 25 Rivers Street. The outer hall has an enriched ovolo cornice with deep frieze decorated with inverted palmettes. The basement contains two range arches, a nearly flat floor with original shelf, and a dresser with Doric legs. A stone flagged floor remains, along with unmoulded panelled shutters and a fragment of dado panelling in the passage. Pegs are visible in the passage, and a grating remains from a cupboard.

Attached wrought iron railings and gate with shaped heads are set on limestone bases.