He stands along with Laurids de Thurah as the leading architect of his time. His death probably saved him from the same type of long, agonizing downfall, as de Thurah had suffered, when his rococo style gave way to the King's newly preferred neoclassicism and his newly preferred architect, Nicolas-Henri Jarden. Eigtved also built Sophienberg in Rungsted, the old Royal Danish Teatre, and in 1753 helped extend Fredensborg Palace by adding four symmetrically positioned corner pavilions with separate copper pyramid-shaped roofs to the main building.