18 Lammas Street

This is a former bank building designed in the English Baroque style, dating from the 18th century. It features two storeys constructed of red brick, with a ground floor made of Bath stone, and decorative elements in Bath stone on the first floor, including balustrades. The roof is slate and hipped to the left.

The building has a five-bay front facing Lammas Street, with three bays on the left and two additional bays added to the right. The left side has a seven-bay front facing Water Street, which is nearly symmetrical with wider spaced bays. Each bay is separated by pilasters on both floors, with a minor cornice above the ground floor and a full entablature featuring a modillion cornice and a balustraded parapet above.

The first-floor windows are square-headed and set in lugged ashlar surrounds, complete with keystones and pediments that are either curved or triangular, supported by console brackets. The triangular pediments are found over bays 1, 3, 4, and 5 on Lammas Street, as well as bays 1, 4, and 7 on Water Street. Ashlar pilasters frame the corners of the original three bays on Lammas Street and each side of the added two bays, also framing the outer bays of the Water Street front. The remaining pilasters are made of brick and topped with ashlar Ionic capitals and bases.

There is a moulded sill course and a deep horizontal band between the ground and first floors, although balustrading is only present under the outermost windows of both facades, where the band previously displayed Midland Bank lettering. The ground floor features rusticated pilasters over a high plinth that projects forward at each pedestal. The arched windows have moulded heads, keystones, and moulded imposts.

The first floor has horned sash windows with small-pane upper sashes, and top-opening windows are located at the front right. The ground floor has fixed windows with three-pane fanlights, except for the front right, and modern doors provide access at the left end of both the front and side elevations. There are plaques on the pilasters at the right end of both parts of the front that read: "This pine end belongs to the house eastward."

The ground floor banking hall was altered in the late 20th century.