Copas Newnham evolved from the amalgamation of two well-known real estate offices.

John Cay & Co was founded during the depression by Charles Newnham, John Cay and Leslie Sterling. The company survived the departure of Leslie Sterling, John Cays untimely death in 1941 and Charles Newnham enlistment in 1942. During the war years it was run by an all female staff until his return in 1946.

In 1947 Charles Newnham was joined by Stan Roberts, who had returned to Australia after a period of captivity with the Japanese, and the partnership Newnham & Roberts was formed.

Con. Copas & Co. commenced business in 1940, first trading as Con Copas & Co., and later changing to Con Copas & King when Arthur King joined the company. Con Copas had been actively engaged in the agency business since the early 1920’s when the basic wage was around four pounds per week and a small bungalow could be bought for 450 - 525 pounds. Mr Con Copas died in September 1951 and Mr. Arthur King in November 1958. The business of Copas & King was carried on by Mr. Jack Copas who in 1973 sold the business to Bryan Menhinnitt and the company Copas & King Pty. Ltd. was formed.

In 1979 the two firms joined and the company Copas Newnham Pty. Ltd. came into being, becoming Copas Newnham First National in 1983. Bryan Menhinnitt retired in 1993 and Lyndal Bassingthwaighte became a partner.

In October 2002 the business split in two with the extremely successful Property Management Department becoming a separate company under the guidance of Lyndal Bassingthwaighte and Clare Ridgewell. The Sales Department welcomed Doug Trenham as a Director and Sales Controller.  In June 2005 Doug Trenham become the principal of the Residential Sales company. 

In order to continue its market-leading position, Copas Newnham First National is continually investing heavily in the latest marketing technologies, providing buyers around the world access to the diverse range of properties in the Toowoomba and Darling Downs region. Copas Newnham First National  continues to offer progressive professional service in keeping with their long history of commitment to Toowoomba and the Darling Downs. The directors are pledged to continually upgrade their service and progress with the same confidence the founders displayed over 70 years ago.