Lower Basildon is a small village in the civil parish of Basildon, near to Pangbourne, in the English county of Berkshire. It is the location of the parish church of St Bartholomew. The National Trust property, Basildon Park, is just above it.
Basildon Grotto, or The Grotto House, is located 0.8 miles (1.3 km) to the west on the road to Streatley. It is currently the headquarters of ISPAL (The Institute for Sport, Parks and Leisure).
The remains of a modest Roman villa were discovered here in 1839 during the construction of the Great Western Railway. The major finds were two superb mosaic floors which unfortunately were destroyed almost immediately, although one was drawn in some detail beforehand by the antiquarian Charles Roach Smith. Nothing of the villa remains today.
The agriculturist Jethro Tull was born in the parish of Basildon and is buried in the churchyard of St Bartholomew's Church in Lower Basildon. He developed his ideas at the Prosperous farm, just south of Hungerford.
To the south-east of the village is wildlife gardens Beale Park.