Coleg Trefeca

Entrance hall remodelled c1913, has a high boarded ceiling with painted decoration, and stair splitting level to teaching areas on an upper floor and to the earlier building, now Warden's accommodation, below. This has the small 'Lady Huntingdon's Dining Room', with octagonal patterned moulded plaster ceiling, the central Eye of God missing, modillion cornices and panelled fireplace wall with scrolls to an open pediment, all in oak in a Gothick style, and originally hinged forward to form a working carrel. The present dining room has a more classical plaster ceiling, with egg and dart cornice, and fireplace originally with a painted classical corniced attic, now removed to the museum. Panelled doors. On the floor above, a good fireplace with eared architrave and decoration, and other C18 detail, all on a small scale. Other sections of the interior result from the mid C19 and later alterations.

The main building has four phases, the pre-1752 farmhouse, which is not now discernable, the 1752 to 1759 Gothick phase, modifications by the Calvanistic College in the mid C19, and further alterations of c1910-20.

Main building of 1752-1759, pebbledashed and colourwashed rubble, with slate roofs. Central low gabled block containing the entrance hall flanked by forward wings, the W wing doubled. Central tall Gothic panelled door with overlight approached by steps, flanked by sash windows, originally with tracery, now sash, all within stone framed openings with pointed gothick heads and hood mouldings all at the same level. Above a stone scroll reading INITIUM SAPIENTIAE TIMOR DOMINI, above which the initials TC (Trevecka College) in a stone shield.

The left, SE, wing is articulated by tall corner and one centre turrets rising originally 3 storeys to a crenellated parapet, now reduced to a single storey with gable over a basement. The right wing is further brought forward, also having corner turrets and gable, and retains its original triple ogee-headed windows with intersecting glazing bars, the upper ones modified. The outer wing is also gabled. The rear elevation, now recessed behind additions, also has corner turrets. The clock tower was added in 1754, the clock now removed to the site museum. In the SW corner; - an 'L'-shaped block, pebbledashed with sprocketed and hipped slate roof and strong dentilled pulvinated cornice, with, on the upper floor, corner Venetian windows flanked by pilasters, possibly later C18 work, but much repaired. Other windows 6 and 12-paned sashes. Two small dormers and brick stacks. The NW front has a 2-storey canted bay, and recessed centre, the round headed door now converted to a window, with the clock tower, set back, above.