Mock fort. Now 3 dwellings, c.1770 and mid C19. Built for the fifth Lord Byron. Coursed and squared rubble, dressed stone and ashlar. Gothic style. Chamfered plinth, moulded string course, crenellated parapet with machiolations. Single coped gable. Single ridge and external corner stacks. Single and 2 storeys, 7 bays. Windows are C20 casements. West front has off-centre blocked entry flanked by single square towers with crosslets. To its left, double French window flanked by single round bosses and beyond, single casements. To left again, round tower with glazing bar casement, flanked to left by a door and to right by mullioned casement. To left again, a similar casement. To right, 3 casements and French window alternating with 3 round bosses. Round corner tower. Above, to left, 4 mullioned casements. Square towers have each a square blank panel. To right, a casement and in corner tower, 3 round windows. South side has projecting central square bay with triple lancet and 4 blank circles. To left, 2 casements and a round boss. To right, a pointed archway. This building is one of two mock forts built alongside the lake and used as a setting for mock naval battles. (NCC/js)