Bovingdon Cottage Tumbleweed Cottage

Bovingdon Cottage and Tumbleweed Cottage are two houses that were originally one building. They date back to the 16th century, with a possible open hall at No. 86, and a west extension from the 17th century at No. 84, along with a 19th-century addition to No. 84. The structure features a timber frame resting on a painted brick sill, with painted brick panels between the exposed timber on the south side of No. 86 and the east front of No. 84. Both houses have steep old red tile roofs, with No. 86 having a hipped roof and a flint and slate roof on the west extension of No. 84.

No. 86 may represent a hall range with two northern bays and a cross-passage, along with service rooms at the south end. No. 84 has three gabled dormers above the eaves and a battened door with a cast iron plaque for Boxmoor to the right of the pasture on the frame. The east end of No. 86 is faced in painted brick and features a three-light casement window on the first floor under a segmental arch. The ground floor has a tiled pentice above a half-glazed central door and flanking two-light casement windows, with wide panels of storey height on the south flank.

There is a large external brick chimney on the west side of No. 86, which has offsets and a lean-to extension for an oven. Traces of a rear wall chimney can be seen on No. 86 near the east corner, while No. 84 has a gable chimney for its timber-framed part, now enclosed by the west extension. The eastern side of No. 86 shows three bays of exposed frame, with a wider middle bay and three panels of width for each bay, including a small 16th-century upper window. This section has chamfered cross-beams supporting the floor, a narrow stair leading to a former attic, old plank doors with L-hinges, and oak panelling in the ground floor rooms. The timber frame of No. 84 features curved braces to the tie beams and a clasped purlin roof with collar trusses.