In the 18th century Upper Street began to be redeveloped from an agricultural to a residential area. Ten houses were built in 1768 (later named Hornsey Row), and a further group built immediately south of Hornsey Row in 1792. A William Beverley (identified with William Roxby Beverley), the first to solve the problem of a "magic knight's tour" (a variant on the knight's tour in which the numbered steps form a magic square) resided in these buildings, now replaced by Islington Town Hall.