Achmester

Achmester was a historic home and national historic district located near Middletown, New Castle County, Delaware. It encompassed four contributing buildings and two contributing structures. Achmester was built in 1829, and was a $1 1/2$-story, single pile "Peach Mansion." It consisted of a five bay frame main block with a five bay gable end addition, and five bay rear service ell. It had a gable roof with dormers and sat on a stone foundation. The façade featured simple box cornices and dormers decorated at a later date with Gothic Revival sawnwork trim, pendents, and vergeboards. The contributing outbuildings consist of a cow barn, shed, milk house, granary, and smokehouse. It was built by Richard Mansfield, a founder of Middletown Academy.

It was listed on the National Register of Historic Places in 1979. It was demolished in 2022.