Greenbank Pool was a gift to the people of Street from Alice Clark in 1937. The town's prosperity came from the Clark family firm of shoemakers, and the present-day headquarters of Clarks is still based in Street, close to the Pool and the Clarks Factory Shopping Village. Much of the housing adjacent to the Pool was originally built for factory workers and before the Pool was built the local men and boys used to swim naked in the nearby River Brue. Alice Clark was a strong supporter of womens rights and left money in her will indicating that she wished a pool to be built so that the women and girls would have somewhere to swim.

The Pool is a registered charity (no 304645) held in trust and administered by a management committee. Like Britain's other remaining open air pools Greenbank runs at a loss. A grant from Street parish council is gratefully acknowledged, in recognition of which an extra discount is available to Street residents on early purchases of season tickets.

Recent changes:
2008 saw the launch of the "Oasis" refreshment kiosk with its attractive new frontage in pastel colours.

2006 introduced a new entry system for season ticket holders based on a credit-card style swipe card. Disabled access was improved, a new Pool blanket is helping to conserve heat overnight, and the Pool hand-rails were replaced in stainless steel. Changes to the pipework bringing water into Greenbank made the supply more robust and eliminated contamination risks.

2005 saw the refurbishment of the changing areas completed, including new disabled facilities and hot showers.

In 2004 the changing room refurbishment started with the mens & disabled area. The Pool building was also listed for the first time (notes from the schedule are reproduced here)

2003 saw the installation of a splash area - an exciting new attraction that has been a big hit with children and enabled the Pool to cope with the extra numbers of visitors during very hot weather.