The previous buildings became surplus to requirements in 1950 .
The previous buildings were demolished ; designs were drawn up by Thomas Tait for building a new Colonial Office on the site ; however only the foundations had been built by the time progress was halted in 1952 .
The previous buildings became surplus to requirements in 1950 and were demolished ; designs were drawn up by Thomas Tait for building a new Colonial Office on the site ; however only the foundations had been built by the time progress was halted in 1952 .