Belton House is a Grade I listed country house in the parish of Belton near Grantham in Lincolnshire, England, built between 1685 and 1688 by Sir John Brownlow, 3rd Baronet. It is surrounded by formal gardens and a series of avenues leading to follies within a larger wooded park.
Belton has been described as a compilation of all that is finest of Carolean architecture, the only truly vernacular style of architecture that England had produced since the Tudor period. It is considered to be a complete example of a typical English country house.
For about three centuries until 1984, Belton House was the seat successively of the Brownlow family, which had first acquired land in the area in the late 16th century, and of its heirs the Cust family. Despite his great wealth Sir John Brownlow, 3rd Baronet, chose to build a comparatively modest house rather than one of the grand Baroque palaces being built by others at the time. The contemporary, if provincial, Carolean style was the selected choice of design. The new house was fitted with the latest innovations such as sash windows for the principal rooms, and more significantly, with completely separate areas for the staff.