[5] The site is owned by Central Bedfordshire Council and leased to the National Trust.

[6][7] Part of the site was formerly a quarry where Totternhoe Stone, a strong type of chalk that was used in Westminster Abbey, was mined.

This part is now grassland with a rich variety of plant species, including some that are now rare; these are characteristic species of chalk downland and include kidney vetch, horseshoe vetch, large thyme, squinancywort, autumn gentian, clustered bellflower, sainfoin and dwarf thistle.

[1][6][3] Totternhoe Castle was probably built in the late eleventh century.

[7] There is access from the National Trust car park off Castle Hill Road.