Grove Lime Kiln

A 19th-century lime kiln at Easton Lane, now a residence, is another Grade Listed II example.

In 1921, the prison was converted into a Borstal Institution and as a result, the quarry and associated masonry works closed.

It was built against an enhanced bank with a charging ramp to the right side to facilitate the loading of the kiln with fuel and broken limestone.

The design of the building has a tapering cylindrical form, with the charging ramp being more rectangular in plan.

Historic England commented that it remains a "well-preserved and distinctive feature of the lime industry and an important survival on Portland" and is of "special historic interest for its location and association with Portland quarries and the prison's use of convict labour during the 19th century and the early 20th century".