In 1973 Cardiff City Council asked the Natural History Society of Howardian High School if it would like to manage 6 acres of scrub/grass/woodland, adjacent to the school, as a nature reserve, thus began 17 years of involvement by the pupils with the Reserve until the Schools closure in 1990. During this time the Reserve was gradually extended to 30 acres. Much of the Howardian Local Nature Reserve site was a disused domestic rubbish tip.

The Friends' Group was formed in 1989, by an enthusiastic group of local residents, who work with Cardiff County Council to further improve the reserve. A good network of paths now weave between the great variety of habitats that are packed with interesting flora and fauna. Works continue today to improve the reserve for its wildlife interest and public enjoyment.