The construction and refurbishing of the Anzac Memorial Centenary Project was a complex and challenging building project situated on a constrained site with limited access.  The original architectural design and specification for the structural elements were to be off-form, in-situ concrete Class 1.  The project team, in consultation with the architects, engineers and precast subcontractor, came up with an innovative solution to achieve the required design finishes to change to precast concrete elements. This ensured that the builder could maintain the specified high level of quality.  An extensive sampling process was carried out to select the appropriate finish through different ratios of cement and admixtures.  The concrete technology utilised new-generation polycarboxylic plasticisers in combination with off-white cement to produce a consistent concrete mix with a spread of 700mm. Paramount to this project was the combination of the smart finish in off-white coloured concrete with the structural requirements for prestressing.  Colour matching concretes with completely different slump characteristics and strength grades was made possible with numerous samples and casting trials before manufacture commenced. Advancements in concrete technology, attention to detail in the moulds and a high level of quality assurance throughout the manufacture process have enabled the striking finished product, which excels equally from an aesthetic and a structural perspective.  Adopting the precast solution ensured that the builder could maintain a high level of quality demanded for a civic monument and using off-site precast concrete also saved five weeks from the contract program. The entire project team on and off the site are to be congratulated for working together and achieving the original design expectations of expressing off-form Class 1 concrete structural elements in this unique public building.