Lostwithiel Junior and Infant School

The building comprises a Victorian school, dating to circa 1870, with later 19th-century classrooms and a headmaster's house, alongside some later alterations. Constructed of slatestone rubble with granite dressings and quoins, it has slate and asbestos slate roofs with raised coped verges and kneelers, alongside brick stacks. The initial design was a U-plan, featuring a main hall and classrooms to the front left and right. A further classroom was added to the right, and two rear wings were built behind the hall. The headmaster's house is attached to the rear wing on the left and is in an L-plan shape, with a porch positioned in the angle. It includes one room in the front wing and two at the rear, alongside a single-storey wash-house and coalhouse attached to the left side. The architectural style is Victorian Gothic.

The main hall has two four-light chamfered granite casements to the front. The classroom to the front left has a gable end, with three 20th-century windows at the upper level, and to the inner side, two tall gabled dormers, two single lights, and a doorway at the inner end with a segmental head. The outer left side of this classroom also has two tall gabled dormers and three single lights, with a stepped external stack. The classroom wing to the front right has a gable end with a three-light mullion and transom window with a hood mould and breather above. This wing comprises two rooms, each heated from a ridge stack, and features a small porch in the angle to the main hall, with a segmentally-headed doorway. Attached to the right is a later 19th-century classroom with two two-light chamfered granite casements, and a gable end on the right side with a two-light mullion and transom window above, accompanied by a breather. This classroom is heated by a stack to the rear, with a small single-storey lean-to attached to the rear.

The rear of the main hall features two three-light chamfered granite casements and an external stack, alongside a door with a corresponding overlight to the right. The two rear wings, one shorter than the other, include a wing to the left with a three-light granite casement on the outer side, a three-light casement, and a door on the inner side, with a breather in the gable end; it is heated by a ridge stack at the junction with the main hall. The rear wing to the right has two four-light granite casements and a door on the inner side, heated by a stack at the inner gable end. The headmaster's house, at the rear left, stands two storeys high, with a gabled front wing featuring a four-pane sash with sidelights on the ground floor and a paired plate-glass sash on the first floor. A glazed porch with a hipped roof is located in the angle to the rear wing on the left, which has a gable end with 16-pane sashes at ground and first floor in brick surrounds with cambered heads. A single-storey outhouse is attached to the left, with a brick stack serving the wash-house and coalhouse at the end. The interior was not inspected. It is regarded as a good example of a Victorian school, where the functions of the buildings remain clear and later 19th-century additions contribute to the asymmetrical Gothic style.