Gerringong RSL Sub-Branch has belatedly celebrated the 100th anniversary of the much loved Soldiers Memorial Hall, which was officially opened on 19 November 1921.

It was built by public subscription to honour the 64 local men who fought in the First World War, 14 of which gave their lives.

"For the families whose loved ones were buried in cemeteries overseas, this building would be a place where they could visit and remember," said Robyn Florance OAM, who was commissioned to write a history of the Hall for its centenary.

The prominantly positioned land was donated by Thomas Noble, and the building was designed for free by architect Varney Parks, the seventh son of Sir Henry Parks, as the family had a long connection with the area.

Originally used as Gerringong Municipal Council's chambers, the local Sub-Branch bought the building in 1945, and since then it has been their clubrooms as well as hosting many other groups and activities.

The centenary was marked by a High Tea at the Town Hall, attended by decendents of the Repatriation Committee and those who served whose names are listed on the walls. Special guests included Peter Poulis MLC, representing the Minister for Veterans; the President of RSL NSW Ray James OAM; the Chair of RSL NSW Sophie Ray; Commodore David Frost, Commander of the Fleet Air Arm; the Member for Gilmore, Fiona Phillips; the Member for Kiama, Gareth Ward; and Deputy Mayor Imogen Draisma.

"This Hall is a timely reminder of why we serve and the price we might have to pay," said Commodore Frost, who lives in Gerringong.

"I drive past every day and it grounds me."

The building, which has been identified as one of the best examples of a memorial in NSW, has recently undergone a thorough restoration to ensure it lasts another 100 years.

The book on the Hall's history is available from the RSL for $40. Its production was assisted by a $5000 grant from the State Government.