Jealott's Hill is a village in the county of Berkshire, England,[1] within the civil parish of Warfield.

This changed again to "Jealot's Hill" on John Snare's 1846 map[5] and by the 1920s the modern spelling was established.

[6] The site was formed in 1927 by the amalgamation of three farms, Hawthorndale, Nuptown and Jealott's Hill itself.

Jealott's Hill House was built in 1928 and officially opened on 28 June 1929 as the offices, laboratory and library of Imperial Chemical Industries's Agricultural Research Station; initially the research focused on nitrogen fertilizers in grassland management.

In 1936, the Hawthorndale Biological Laboratories were opened in the converted mansion building of the former farm.