Pulhamite rock islet in lake at Milton Mount Gardens (former Worth Park)

This is an artificial rock islet constructed between approximately 1884 and 1887 by the firm of James Pulham and Son as part of the gardens designed for Sir Francis Abraham Montefiore at Worth Park. The islet is made of Pulhamite cement, a stone-coloured terracotta material, over a core of clinker and scrap brickwork.

The islet is irregularly shaped and located in the eastern part of the lake, measuring approximately 3 meters across with 3 meters visible above the waterline. The lower section is comprised of smaller rocks with some brickwork visible, above which is a band of larger rocks. A set-back band of narrow rocks follows, topped by an irregularly shaped mass of larger rocks containing a planting pocket where a large tree is growing.

Worth Park and its gardens were originally part of the forest of Worth. Sir Joseph Montefiore purchased the estate in 1850 and a new mansion was built following a fire in 1853. Between 1884 and 1887, Sir Francis Montefiore rebuilt and extended the mansion and stable block, commissioning Pulham and Son to create the gardens. These were laid out across four levels using Pulhamite rock and pre-cast stone-coloured terracotta ornaments. The islet is one of the most significant and well-preserved original garden features from the 1880s.

The islet is notable as one of the few surviving garden structures created by James Pulham and Son within Worth Park, now Milton Mount Gardens, and is situated within a publicly accessible landscape of local interest.