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Havant New was a temporary terminus between Havant and Rowlands Castle on the Portsmouth Direct Line: a temporary platform, erected by the L&SWR who were granted permission to run all trains along the line by its independent venture owners, but which did not reach Portsmouth, which started a dispute with the LB&SCR which owned the only railway south of Havant.

In 1858, the two local railway companies started the "Battle of Havant". The London, Brighton and South Coast Railway ran the London to Portsmouth Line via Hove, and refused to allow the London and South Western Railway to use any of that track to reach Portsmouth.^{[citation needed]} The LB&SCR blocked the line just north of the intended junction, prompting the L&SWR to open a temporary station at Havant. The station was opened on 1 January 1859.^[1][2] Passengers would travel from Havant New in a horse-drawn omnibus to Hilsea, bypassing Havant.^{[citation needed]} The passengers could then carry on into Portsmouth by train.^{[citation needed]} After two years the companies came to an agreement and the L&SWR were allowed access to the disputed line.^[3] The station closed on 24 January 1859.^[1][2][4]

Nothing remains of the station today; the site is marked only by some old semaphore signal posts, some slates and a platelayers' hut.^{[citation needed]} The station was the only one on the line built of blue bricks. The surrounds were not developed at the time of the station's existence so having fulfilled its political function it closed, in 1859.^{[citation needed]}

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