By 1913, the school site included the Technical College Building, the Workshops Building, a residence, a large shed and a reservoir. In February 1918 the Department of Public Works decided to add another story to the Science Block and Workshop. The estimated cost was and the work was performed by day labour. The ground floor was converted from a machine shop and blacksmiths' shop to a drawing room and classrooms. The first floor addition provided a lecture room, a classroom, a physics laboratory, a chemical laboratory and offices. It was accessed via a set of exterior stairs, in the centre of the eastern elevation, and the original Dutch-gable roof was refixed atop the addition. In 1923 plans were drawn for extension of the domestic science scullery to its west to include a laundry. The locations of some lightweight interior partitions within the Technical College Building were also altered. Also at this time, the library was moved to the southern end of the first floor; and its former location was converted into a principal's room. In conjunction with this work, completion of 'improvements to the frontages of the college' consisting of "brick and iron fence, steps, gates, etc", designed by a Mr Johns, and a reinforced concrete retaining wall, running north along the Central Street (Burnett Highway) boundary, were constructed in 1924. The brick fence runs along the site boundary, in the southeastern corner of the site. It frames the Technical College Building and flanks a set of tapered stairs that lead to the building's eastern entrance. The late 1920s brought unemployment to Mount Morgan. The Mount Morgan Gold Mining Company went into voluntary liquidation in 1927 and its machinery was sold. However, former mine manager, Adam Alexander Boyd, raised sufficient funds to register a company, Mount Morgan Limited, in June 1929, to exploit the Mount Morgan ore reserves. Initially income was derived from recovering copper from water in the mine, but falling copper prices and a lack of finance, combined with the onset of the Great Depression in 1929, meant that liquidation again looked certain. In the same period, educational changes occurred. In December 1928, the Mount Morgan Technical College was brought under the control of the Department of Public Instruction, and in 1929 Mount Morgan Intermediate School opened on the site of the high school and technical college. Mount Morgan Mine began open-cut gold mining in 1932. In that year the Queensland Government decided to subsidise the gold mining industry as part of a scheme to increase employment. This government initiative came at a crucial time for the future of Mount Morgan Limited.