Lerchenborg is a manor house located 4 km south of Kalundborg on the west coast of Zealand, Denmark.

[1] The large estate included 7 manors, 13 churches and extensive woodlands, taking in practically all of Kalundborg Amt.

Lerche constructed a new seat on the estate, probably assisted by Nicolai Eigtved, Denmark's leading architect of the time.

He renamed his estate Lerchenborg in 1754 but did not establish it as a county (grevskab) which, since he had no direct heirs, would fall back to the king.

However, in 1952 it was reacquired by a member of the family, Christian Albrecht Frederik Lerche-Lerchenborg, and has been owned by the Lerchenborg counts ever since.