1. Viewing platform constructed using tumulus as base.

2. This garden is depicted on the Second Edition Ordnance Survey 25-inch map of Montgomeryshire XLIII, sheet 4 (1903). Its main elements on that map include bridge, carriage drive, fountain, lodge, orangery, parkland, contrived antiquity, kitchen garden, parterres, terrace walls, viewing platform, well, walled garden, woodland, woodland with vista paths, relict hedgelines and formality.
C.S.Briggs 24.05.06

3. An icehouse is recalled to be on the site but can no longer be located.
Source: Sylvia P. Beaman and Susan Roaf, The Ice Houses of Britain, p.537.
C.H. Nicholas, RCAHMW, 7th December 2006.