In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Knoll and Bassett House like this:
BASSETT HOUSE and THE KNOLL, an extra-parochial tract in Blaby district, Leicestershire; 7½ miles SE of Leicester. Pop., 14. Houses, 3.
A Vision of Britain through Time includes a large library of local statistics for administrative units. For the best overall sense of how the area containing Knoll and Bassett House has changed, please see our redistricted information for the modern district of Blaby. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Knoll and Bassett House and units named after it.
GB Historical GIS / University of Portsmouth, History of Knoll and Bassett House, in Blaby and Leicestershire | Map and description, A Vision of Britain through Time.
Date accessed: 25th February 2017
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Knoll and Bassett House".