It was established in the September 1988 on the initiative of Lincolnshire County Council.
It became a registered charity on 9 January 1991, at the same time gaining independence from the county council and merging with the established Trust for Lincolnshire Archaeology.
Heritage Lincolnshire cares for six historic sites in the county, as well as its headquarters at the Old School in Heckington, Mill Cottage at Little Steeping and its building preservation projects, such as the Old King's Head.
The earlier part of it was built at the end of the sixteenth century and was given major alterations in 1661 in Artisan Mannerist Style.
It is red brick in English Bond with recent tiles over a thatched roof.