Former Schoolmaster's House at the Old Grammar School

The Former Schoolmaster's House at the Old Grammar School is a three-storey building facing roughly southeast. It features a four-window block with a three-storey crosswing to the right. The roof is slate, with squared rubble on the entrance front and random rubble elsewhere. To the left, there are a pair of cylindrical stone chimneys, and across the ridge, a group of six cylindrical stone chimneys. The roof has a wide overhang on the left gable.

Each of the four steeply pitched dormer roofs has three brackets and is fitted with a pair of horned sash windows. On the first floor, there are two-light windows that are mullioned and transomed, set under deep grey stone lintels. The ground floor has three windows that are three-light, also mullioned and transomed, under deep grey stone lintels, with the fourth bay featuring a porch with a parapet topped by a statue of a griffin. The square-headed entrance doorway has a boarded and nailed door. The gabled crosswing to the right has a group of seven cylindrical stone chimneys. On the first and second floors, there are two-light windows under deep grey stone lintels, while a former ground floor window has been converted into a doorway.

Attached at a right angle to the rear of the former schoolmaster's house is the former Old Grammar Schoolroom, which has 17th century origins and was restored in the early 19th century, later incorporated into the school as a library. The exterior of the schoolroom is obscured by later buildings.

Inside, the roof consists of six bays supported by five pegged arch-braced trusses with cusping above the collars, all except the southern truss featuring rose bosses. There are three tiers of stop-chamfered purlins with small cusped windbraces, and a ventilator louvre is located in the fourth bay from the north. The interior also includes inserted flat-roofed dormer-type windows and skylights. The mullioned windows generally have deep splays and are mostly two-light, although the window on the north wall has three lights and features diapered iron casement glazing. There are two doors on the west elevation and one on the east, with a blocked doorway on the south wall repurposed as a recess for books. The walls are finished in scribed render.