The house was one of the earliest of a number of very large private residences built on the north side of Piccadilly, previously a country lane, from the 1660s onwards. The first version was begun by Sir John Denham in about 1664.[1] It was a red-brick double-pile hip-roofed mansion with a recessed centre, typical of the style of the time, or perhaps even a little old fashioned. Denham may have acted as his own architect, or he may have employed Hugh May, who certainly became involved in the construction after the house was sold in an incomplete state in 1667 to Richard Boyle, 1st Earl of Burlington, from whom it derives its name.[2] Burlington had the house completed, which was the largest structure on his land, the Burlington Estate.