Hampton Court Palace is a royal palace in the London Borough of Richmond upon Thames, Greater London, in the historic county of Middlesex, and within the postal town East Molesey, Surrey; it has not been inhabited by the British Royal Family since the 18th century. The palace is 11.7 miles (18.8 kilometres) south west of Charing Cross and upstream of central London on the River Thames. It was originally built for Cardinal Thomas Wolsey, a favourite of King Henry VIII, circa 1514; in 1529, as Wolsey fell from favour, the palace was passed to the King, who enlarged it.

The following century, King William III's massive rebuilding and expansion project intended to rival Versailles was begun.[1] Work halted in 1694, leaving the palace in two distinct contrasting architectural styles, domestic Tudor and Baroque. While the palace's styles are an accident of fate, a unity exists due to the use of pink bricks and a symmetrical, if vague, balancing of successive low wings.

Along with St. James's Palace, it is one of only two surviving palaces out of the many owned by King Henry VIII.

 

Information from Wikipedia which gives more detail.