Trevor Hall

An early Georgian house of considerable architectural quality, Trevor Hall presents a symmetrical red-brick facade with pale ashlared stone dressings to its entrance front, with rubble stonework to the sides and ashlar to the rear where earlier fabric has been retained. A rendered northeast rear projection was added later. The building comprises a 5-bay 3-storey facade with semi-basement, flanked by 2-bay forward-projecting wings and a 1-bay extension to the far left.

The brickwork employs Flemish bond, with ashlared stone detailing to the basement and fine droved finish to the ashlar dressings. The roof is a modern hipped Ffestiniog slate covering, with tall rebuilt brick stacks to left and right, and a bell-housing against the inner right stack. A deep moulded eaves cornice runs across the front (except to the left extension bay), with a plain band to the entablature. Long and short quoins are left unconnected to the storey string-courses.

The window openings are keyblocked with gauged brick lintels and moulded stone sills. The centre and right-hand bays contain 12-pane sashes in flush timber frames, while the left-hand bays have thinner glazing bars with dropped sills. The top floor has 6-pane windows. The basement features a single-light opening to the centre and a 2-light stone mullioned opening to the west wing basement. A very fine rainwater head, dated 1742, appears to the upper right of the facade.

The central entrance is marked by a pedimented ashlar doorcase that breaks the string-course line, approached by double stone stairs with iron handrail. The door is of 6 panels.

The left side elevation shows rubble masonry with squared quoins and two projecting chimney breasts, stepping inward behind the left extension bay. It contains mullioned and transomed windows to the centre with smaller openings (one blocked) below. The right elevation has four windows in coursed masonry with string courses; a date panel reading 1742 passes through the left string-course, with later masonry visible to the right. These windows are 2-light timber mullioned units set under segmental heads, with one blocked to the left.

The rear elevation is less regular, featuring full-height windows and no basement. A rendered extension occupies the northeast corner. The main rear elevation shows rough ashlar work with string courses and a central chimney breast, with timber cross windows under segmental heads. The northwest wing incorporates earlier fabric, containing 2-light stone mullion-and-transom windows with a door in the angle.

The interior retains a single-pile plan-form with a central entrance hall, opening left to a staircase and right to a rear linking corridor. This arrangement possibly reflects an earlier sub-medieval H-plan layout.

The entrance hall contains a remarkable chimney-piece of mixed stylistic character on its rear wall. An open segmental pediment clasps the Lloyd and Trevor arms, with a panel dated 1743 supported by volutes. Urn finials crown the angles above male and female busts mounted on moulded brackets with volutes beneath. The fire surround features scallop motifs to its architrave.

To the left of the hall, a wide archway opens to an 18th-century cantilevered dog-leg staircase (mostly renewed) with timber treads, carved ends, and triple turned balusters with Ionic newels to the handrail. Panelled dados sweep up to fluted Ionic pilasters; detailing to the upper flight is simpler. The hall also retains panelled dado, shutters, and moulded architraves. A plaster ceiling divides the hall into three bays separated by wide plastered beams.

A panelled parlour opens from the right of the hall, with a small dining room beyond. A keyblocked arch in the rear passage leads to the kitchen, which retains a keyblocked segmental arch to its original chimney opening. Good-quality detailing survives in other reinstated public rooms. The first-floor rear passageway features arched entries with a swagged frieze.

Below ground, vaulted cellars contain a flagged wine store and a fine studded oak door to the rear entrance.