Tattershall is located on the A153 Horncastle to Sleaford road, 1 mile east of the point where that road crosses the River Witham. At its eastern end, Tattershall adjoins the village of Coningsby, 1 mile to the north of the village. Tattershall Castle was built in 1434 by Ralph de Cromwell, 3rd Baron Cromwell on the site of an earlier 13th century stone castle, of which some remains can still be seen.The 15th century buttercross stands in the Market Place, markets are no longer held but it is still surrounded by shops. Tattershall railway station was on the line between Boston and Lincoln until closure. The former railway line has been converted into a cycle path, which cost of £2 million, and was opened in October 2008.