The following text is from the original listed building designation:
TQ 64 SW CAPEL SYCHEM LANE, FIVE OAK GREEN
5/286 Lydd Farmhouse 25.4.90
GV II
Barn. Half-converted to domestic use. C17 barn converted to domestic use in the mid/late C19. Timber-framed and clad with weatherboarding (a small section of the house section is underbuilt with brick); C19 brick stacks and chimneyshafts; peg-tile roof.
Plan and Development: Originally a 4-bay threshing barn on a north east / south west axis with opposing full height double doorways south west of centre onto the threshing floor. In the C19 the north eastern 2 bays were converted to a 2-room plan house facing north west with central front doorway and stair and stacks each end. House is 2 storeys and barn is open to the roof.
Exterior: The farmhouse section has an irregular 2-window front. The first floor windows are original (there are similar windows first floor rear), that is to say, mid/late C19, horizontal sliding sashes whilst the ground floor casements, door and monopitch-roofed porch are C20. Immediately to right of the farmhouse section are the full height double plank doors belonging to the barn. There is another small plank door close to the right end and another beyond into a secondary lean-to outshot that end. Roof is gable-ended.
Interior: The barn is essentially intact. Its bays are defined by full height wall posts which support tie-beam trusses with clasped side purlins, diminishing principals, and queen struts. Most of the common rafter couples are original. The centre 2 bays have curving windbraces. The end bay of the barn is sealed off as some form of granary. It has a sloping wall over the tie tilting towards the end.
Lydd Farmhouse is an interesting early barn conversion which also forms part of a very picturesque Victorian farmyard.
Listing NGR: TQ6444244744

English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.