Knowsthorpe, Knostrop or Knostropp is an area of Leeds, West Yorkshire, England, on the River Aire. The spelling "Knostrop" is predominantly used for the large water treatment works in the area. Atkinson Grimshaw painted Knostrop Cut, Leeds, Sunday Night, 1893.
Knostrop Hall was built in the 17th century by Adam Baynes, Member of Parliament for Leeds during the Commonwealth, whose family had lived in the district since the mid 16th century.[1] Atkinson Grimshaw lived at the hall in the 1870s, and it was demolished in 1960.[2]