Green Valley Historic District

Green Valley is a rural district in Chester County, Pennsylvania, following the drainage basin of Green Valley Creek through East Marlborough and Newlin Townships. Settlement began with a few families in the 18th century, and in the 1860s the valley supported two grist mills, a saw mill, a Baptist church and burial ground, several lime quarries and kilns, and a one-room school built in 1862. Lime was used almost exclusively as a soil sweetener. The Green Valley Farm house, dating from about 1810, is a stone Georgian/Federal transitional building with a handsome all-stone barn. The William Hall house, built about 1795 of log, is a modest 18th-century example that retains its original interior features. Passmore Mill is the only one of the two mills still standing. Much of the valley remains open farmland, and it is valued for its intact landscape and buildings.