The National Museum of Wales owns two fine oil paintings of Margam House, viewed from the north and the south, completed sometime around the turn of the 17th century. A closer look reveals a substantial garden pavilion, known as the Banqueting House, at a little distance from the house. Margam’s mansion has been remodelled a number of times, and the Banqueting House too has seen some changes: it was relocated in the 19th century and survives today as the facade of a very imposing cottage.
High above the valley of the River Towy stands a sturdy, and seemingly invincible, tower. It was built to commemorate Admiral Lord Nelson, but within a century it was falling into decay, and it only narrowly escaped conversion into a cowshed.