"But now is a good time to reflect on just how far we've come, some tragic losses, and to acknowledge how much energy and passion thousands of people have put into the recovery."
Mr Brownlee said major inroads had been made in buying up central Christchurch land for new projects, with agreements reached for almost two thirds of the land area for priority projects.
The Crown is buying land to implement the Christchurch Central Recovery Plan, which aims to revitalise the central city.
Mr Brownlee said 63 per cent of the total designated land area for the plan's priority projects - the Convention Centre Precinct, the East Frame, the Bus Interchange, the Justice and Emergency Services Precinct, and the Metro Sport Facility - now had purchase agreements in place.
Across all projects, agreements were in place for 43.4 per cent of all land at a cost of $231.6 million.
Mr Brownlee said the figures showed the programme was moving ahead at a very good pace.
"To build these new projects we first need to purchase the necessary land, complete any demolition that are required, and then do the physical building. We are already seeing this building work take place on the early stages of the Avon River Precinct."
The Crown has not had to use its compulsory acquisition powers to date, and two independent valuers had been providing advice to the Crown in the negotiations.