The land and building were revalued on 1 October 19W8 with $80 million attributable to the land and $200 million to the building. At that date the estimated remaining life of the building was 25 years. A further revaluation was not needed until 1 October 20X3 when the land and building were valued at $85 million and $180 million respectively. The remaining estimated life of the building at this date was 20 years.