Collections at Groot Constantia Manor House form part of Iziko Social History Collections.
The furniture collection contains a substantial amount of South African furniture, dating from the seventeenth to twentieth centuries. The emphasis of the collection is on Cape Furniture, originating from the eighteenth and nineteenth centuries, and is particularly well represented in the chair, table and armoire collections. Country and town furniture are represented; this collection includes some rare and unique items.
The transport collection contains about thirty coaches, wagons and carts – most being part of the Isaacs Collection – and bicycles. Most of these are on display at Groot Constantia Manor House.