The Wanstead Park Grotto is located within the grounds of Wanstead Park, a large municipal park covering 140 acres in the London borough of Redbridge.
The park once formed part of the deer park of the former manor house of Wanstead Manor. Constructed from 1715 to 1722, the Manor was designed in a popular Palladian style of this period.
The Grotto’s construction was undertaken by John Rocque, commissioned by the 1st Earl Tylney in 1735 and completed by 1764. It is said to have cost £2000 but with the addition of decoration and ornamentation was later valued at £40,000.
The front of the building, facing the lake, was of rough stone with a variety of ornamental details including arches and niches, with a landing stage for boats.