Road: M5 between J20 and J21
Location: Kingston Seymour, Somerset
Date planned: 1970s
Grid reference: ST406669
Kingston Seymour was held as a potential infill service area, but was never used.
Most the land was still in Highways Agency ownership as late as 2006 though current status unknown. The level of the site was raised to about 2m to 3m above the surrounding area with boulder sized rock fill (slightly higher than the adjoining M5), which presumably came from the cuttings for the split level section to the north between J20 and J19.