Wormleybury is an 18th-century house surrounded by a landscaped park of 57 ha (140 acres) near Wormley in Broxbourne, Hertfordshire, England, a few miles north of Greater London. The house was rebuilt in the 1770s from an earlier house built in 1734. The house is a Grade I listed building. The garden is well known for its historic rare plant collection. There is a crescent shaped lake in the grounds, bordered by woods on three sides.