Seddon House School at Dingestow Court

Seddon House School at Dingestow Court is a Tudor-style coach-house dating from the 1½-storey period. It features three steeply-pitched dormers and has been converted for use as a private school. The front is constructed from coursed pale brown sandstone rubble with freestone dressings, while the rear is made of mixed random rubble. The roof is covered with blue slates and includes ashlar gable copings and an ashlar chimney. Originally likely rectangular in shape and oriented east-west facing south, it now has two lean-to additions at the rear.

The symmetrical south front has a chamfered plinth that extends around the entire building. In the center, there is a large Tudor-arched coach doorway with a chamfered surround, which is now filled with a glazed screen and a part-glazed door. Above this doorway is a large gabled dormer that contains a transomed Tudor-arched window with Y-tracery in the head. To the left and right, there are two windows at ground floor level, with a gabled dormer above and between them, creating a triangular pattern. All windows are of two lights with chamfered mullions and diamond lattice leaded glazing; however, the ground floor windows are square-headed, while the dormer windows have coupled Tudor-arched lights.

Offset to the left of the central dormer on the roof ridge is an elegant octagonal chimney (or ventilator) with an open arcaded upper stage and a moulded cap finished with a ball finial, said to be inspired by a famous 14th-century stack at Grosmont Castle. The rear wall features various modern windows and doors, along with five skylights. The building has not been inspected but is likely to have undergone significant remodeling.