The MLC Building is a landmark modernist skyscraper in the central business district of North Sydney, on a block bounded by Miller Street, Denison Street and Mount Street (Brett Whiteley Place). Planned in 1954 and completed in 1957, the complex was designed in the modernist Post-war International style by architects, Bates, Smart & McCutcheon. Its completion marked the appearance of the first high-rise office block in North Sydney and the first use of curtain wall design. Built to provide much-needed office space for the Mutual Life & Citizens Assurance Company Limited, the building continues to be primarily-occupied by its original tenants.