Alexander Square is a garden square in Chelsea.
John Alexander was the inheritor of the Thurlow Estate through being a descendent of the first husband of Anna Maria Browne.
In 1826 Alexander drew up plans to for a speculative development with the builder James Bonnin. George Basevi became the architect of the scheme when under construction in 1829.
Alexander Square and South Street (now South Terrace), Alfred Place (now Alexander Place), North Terrace, Alexander Place and York Cottages were subsequently built.
The communal garden at the centre of the square is a third of an acre in size.
