The 1st Duke of Westminster, together with his surveyor and architect Thomas Cundy II, laid out Chester Square between 1828 and 1840 as part of the Grosvenor Estate. Thomas Cundy also designed St Michael’s Church on the west side, which still provides a backdrop to the garden today. The 1.5acre garden is planted with shrubs and herbaceous borders and contains a central rose garden. It was restored in 1997 to the layout that appears in the 1867 Ordnance Survey map. Rope-edged tiles and some original trees have survived. Past residents of this peaceful and tranquil spot include the poet Matthew Arnold (1822-88) at No 2 and Mary Shelley (1797-1851), author of Frankenstein, at No 24.