Blackbourne (Estate Office)

Blackbourne, also known as the Estate Office, is a former farmhouse dating from the 17th century. The building has two storeys and attics, and while it may have a timber-framed core, it is largely encased in early 19th-century flint, primarily kidney flints mixed with red brick headers. Notable architectural features include a red brick string course, rusticated quoins, and window surrounds. The roof has plain tiles on the front slope and black glazed pantiles on the rear slope.

Inside, there is an internal chimney stack with a diagonally set base and four shafts made of early 19th-century bricks arranged in a diaper pattern, along with two end chimney stacks featuring high copings and corbels at the gables. The building has three-light casement windows, some with square leaded panes and remnants of crown glass; the ground storey windows have segmental arched heads in their brick surrounds. Additionally, there are two flat-headed dormers on the rear slope of the roof.

The entrance features an enclosed, flat-roofed porch with a door that has six flush panels and a slightly pointed arch surrounding a fanlight. The interior is primarily Georgian, showcasing some panelling and boxed-in beams, as well as deep inner splays and shutters on the windows. A notable feature is the original late 17th-century dog-leg staircase with turned balusters that rises the full height of the house. The roof structure includes principal rafters, cambered collars, and slightly stepped butt purlins. At the rear, there is an early 19th-century two-storey addition built with matching materials and a shallow-pitched pantiled roof.