In 2007, a 250 metres (820 feet) stretch of a tributary to the brook that had been culverted in the 1970s to make way for a golf course was uncovered as part of a £2.5 million community regeneration project.

[10] Monks Brook was documented in a charter in 932, in which King Athelstan granted the estate of North Stoneham to a man named Alfred.

[12] However originally the name only applied to that northern portion of the brook, with the southern reaches referred to as Swaethling Well in a charter relating to South Stoneham in 1045.

[12] The Old English word Swaethling is believed to mean "misty stream" and the settlement of Swaythling is thought to be named after Monks Brook.

After flowing under the A27, the brook continues southwards, passing the rear of South Stoneham church, entering the grounds of the Wessex Lane Halls.

Here, Monks Brook was a feature of the gardens of South Stoneham House, landscaped by Capability Brown and feeds a large salmon pool.

Between Eastleigh and Southampton, the brook and its immediate surrounds form a green corridor which is reportedly home to roe deer, lizards, kingfishers, wasp spiders and slowworms.

[10] Further upstream, on the western side of Chandlers Ford, the brook once again forms a green corridor and is a nature reserve, bordered by large alder trees.

In August 2019 the Environment Agency reported that fuel oil had spilled into Monks Brook and they had installed booms across the water to attempt to clear it up.