It lies between Totton and Hythe on the western shore of Southampton Water and directly east of the New Forest.

He was succeeded by Sir Walter Romsey of Rockbourne, who died in 1403–4 holding land in Marchwood.

William Rickman died in possession of the manor in 1599, leaving his daughter Katherine wife of David Urry his heir.

[6] A hundred years later, David Urry, described as of St. James, Westminster, sold the manor to Gilbert Serle of Leghorn, and it subsequently passed to Sir William Oglander.

[6] By the beginning of the 20th century, there were Government gunpowder magazines and a Metropolitan Police barracks in Marchwood.

[6] Marchwood Military Port was built here during World War II, which played a vital role in the Normandy landings.

Marchwood railway station opened on the Fawley Branch Line beside Main Road on 20 July 1925.

[9] Freight trains still operate on the line and a set of manual level crossing gates are still used on Main Road.

Hampshire County Council have agreed to fund a study into reopening the Waterside line between Totton and Hythe, with a stop at Marchwood.

There is also Lloyds recreation ground which is home to a host of football clubs, as well as two tennis courts.