Townhill Farm became part of the Manor of South Stoneham, but was purchased in 1787 by Nathaniel Middleton, who had made his fortune in the service of the British East India Company.

The gardens at Townhill Park were laid out by Gertrude Jekyll and were noted for their rhododendrons, azaleas and camellias.

Meanwhile the house itself and the remaining 30 acres (120,000 m2) of land became a school for underprivileged girls, owned and operated by Middlesex County Council.

Having arrived at Woodmill by Rolls-Royce, he switched to a horse-drawn milk float to make his entrance in Townhill Park.

[2] The local authority boundary between Eastleigh (borough) and Southampton runs through the old Townhill Farm property, and the area is divided.

The Townhill Park suburb consists mainly of blocks of flats, built originally as council housing.

In 2024, a large amount of the block of flats in this area have been demolished part of the Townhill Park regneration plans started in 2012.

[3] Several street brawls involving gangs occurred in Townhill Park in 2009, one of which led to a 15-year-old boy receiving stab wounds to the neck.