Competition result announced. Cost estimate A£3.5million (A$7million).
Utzon agrees to work with Ove Arup.
Utzon in Sydney for the first time.
Utzon in Sydney with the Red Book. Cost estimate A£4,812,000 (A$9,624,000).
Premier Cahill insists work is started in February 1959.
Project divided into three phases: Stage 1-platform, Stage 2-roof shells, tiling, Stage 3-walls and interiors.
Estimate: A£9,300,000 (A$18,600,000).
Utzon decides to base the geometry of the shells on that of a sphere.
Yellow Book submitted.
Estimated cost: A£13,750,000 (A$27,500,000).
Boxing Day meeting with Arups at Heathrow, before Utzon and family leave on journey to Australia.
Monday: Utzon flies in to Sydney
Hornibrook commence work on Stage 2.
Arup Engineer Michael Lewis arrives in Sydney on crutches after a bus accident at Tel Aviv.
Estimated cost A£14,799,529 (A$29,599,058).