The wings, a new porch, a two-storey saloon (with a gallery, and a frieze based on the Elgin Marbles) and a library were added between 1818 and 1824.

[2][3] From John Strutt the house passed to his eldest surviving son, Joseph, whose wife Lady Charlotte FitzGerald was created Baroness Rayleigh in 1821.

The 3rd Lord Rayleigh established a laboratory in the west wing, which remains to this day.

Indeed, he used apparatus from this laboratory to isolate argon in the cellar of Terling Place in 1894, for which he was awarded the Nobel Prize in Physics in 1904.

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